Document And Entity Information [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Condensed Consolidated Income Statements [Abstract] Revenues Revenues Total revenues Revenues (note 6) Cost of Services Costs of services, excluding depreciation and amortization Costs of services, excluding depreciation and amortization (note 7) Cost of Services, Total Aggregate revenue less cost of services directly attributable to the revenue generation activity, excluding depreciation and amortization expenses. Gross Revenue, Net of Expenses Gross revenue, net of expenses Selling, General and Administrative Expense Selling, general and administrative expenses Selling, general and administrative expenses (note 7) Total selling, general and administrative expenses Depreciation, Depletion and Amortization Depreciation and amortization expenses Depreciation and amortization expenses (note 7) Total depreciation and amortization expenses Depreciation and amortization expenses Gain (Loss) on Disposition of Property Plant Equipment Gain on disposition of property, plant and equipment Gain on disposition of property, plant and equipment Foreign Currency Transaction Gain (Loss), before Tax Foreign exchange gain Foreign exchange gain Operating Income (Loss) Operating income Operating income Investment Income, Interest Interest income Interest Expense Interest expense Income (Loss) from Equity Method Investments Equity income (note 18) Equity income Other Nonoperating Income (Expense) Other, net Other Income (Expense) Other Income (Expense) Other income (expense) Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income before income taxes Income tax expense (recovery) (note 8): Current Income Tax Expense (Benefit) Current Deferred Income Tax Expense (Benefit) Deferred Deferred income tax recovery Income Tax Expense (Benefit) Income tax expense Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Net income attributable to: Net Income (Loss) Attributable to Parent Stockholders Net income Net Income (Loss) Attributable to Noncontrolling Interest Non-controlling interests Earnings per share attributable to stockholders (note 10): Earnings Per Share, Basic Basic Basic, Per share amount Earnings Per Share, Diluted Diluted Diluted, Per share amount Weighted average number of shares outstanding (note 10): Weighted Average Number of Shares Outstanding, Basic Basic Basic, shares Weighted Average Number of Shares Outstanding, Diluted Diluted Diluted, shares Condensed Consolidated Statements of Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss), net of income tax: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income (loss) Total comprehensive income (loss) attributable to: Comprehensive Income (Loss), Net of Tax, Attributable to Parent Stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Non-controlling interests Condensed Consolidated Balance Sheets [Abstract] Assets [Abstract] Assets Assets, Current [Abstract] Current Assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents, end of year Cash and cash equivalents, beginning of year Cash and cash equivalents Restricted Cash and Cash Equivalents, Current Restricted cash Accounts Receivable, Net, Current Trade and other receivables Inventory, Net Inventory (note 13) Advances against auction contracts arise when the Company pays owners, in advance, a portion of the expected gross auction proceeds from the sale of the related assets at future auctions. Advances against auction contracts Advances against auction contracts Prepaid Expense and Other Assets, Current Prepaid expenses and deposits Assets Held-for-sale, Not Part of Disposal Group, Current Ending balance Beginning balance Assets held for sale (note 14) Income Taxes Receivable, Current Income taxes receivable Assets, Current Total Current Assets Property, Plant and Equipment, Net Net book value Property, plant and equipment (note 15) Equity Method Investments Equity-accounted investments (note 18) Equity-accounted investments Other Assets, Noncurrent Other non-current assets Intangible Assets, Net (Excluding Goodwill) Intangible assets (note 16) Net book value Goodwill Goodwill, Balance Goodwill, Balance Goodwill (note 17) Goodwill acquired on acquisition Deferred Tax Assets, Net, Noncurrent Deferred tax assets Assets Total Assets Liabilities and Equity [Abstract] Liabilities and Equity Liabilities, Current [Abstract] Current liabilities: Carrying amount of business obligations due to Consignors for equipment and other assets accepted for auction by the Company that are payable within one year, or the operating cycle, if longer. Auction proceeds payable Auction proceeds payable Accounts Payable and Accrued Liabilities, Current Trade and other payables Accrued Income Taxes, Current Income taxes payable Short-term Debt Short-term debt (note 19) Short-term debt Long-term Debt, Current Maturities Current portion of long-term debt (note 19) Current portion Liabilities, Current Total Current Liabilities Long-term Debt, Excluding Current Maturities Non-current portion Long-term debt (note 19) Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent Share unit liabilities Other Liabilities, Noncurrent Other non-current liabilities Deferred Tax Liabilities, Net, Noncurrent Deferred tax liabilities Liabilities Total Liabilities The Company is subject to legal and other claims that arise in the ordinary course of its business. In the normal course of business, the Company will in certain situations guarantee to a consignor a minimum level of proceeds in connection with the sale at auction of that consignor's equipment. Contingencies Contingencies (note 22) Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount Contingently redeemable non-controlling interest, Balance Contingently redeemable non-controlling interest, Balance Contingently redeemable non-controlling interest (note 9) Redemption value of the contingently redeemable NCI Stockholders' equity (note 20): Stockholders' Equity Attributable to Parent [Abstract] Share capital: Common Stock, Value, Issued Common shares; no par value, unlimited shares authorized, issued and outstanding shares: 105,885,660 (December 31, 2015: 107,200,470) Additional Paid in Capital, Common Stock Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income Stockholders' Equity Attributable to Parent Shareholders' equity Stockholders' Equity Attributable to Noncontrolling Interest Non-controlling interest Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance Balance Total Equity Liabilities and Equity Total Liabilities and Equity Common shares, no par value Common Stock, Shares, Issued Common shares, issued shares Common Stock, Shares, Outstanding Common shares, outstanding shares Condensed Consolidated Statements of Changes in Equity [Abstract] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common stock [Member] Additional Paid In Capital [Member] Additional paid-In capital [Member] Retained Earnings [Member] Retained earnings [Member] Accumulated Other Comprehensive Income [Member] Accumulated other comprehensive income (loss) [Member] Shares, Outstanding Balance, shares Balance, shares Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Net income Other Comprehensive Income (Loss), Net of Tax Other comprehensive income Comprehensive Income (Loss), Including Portion Attributable to Contingently Redeemable Noncontrolling Interest Comprehensive Income (Loss), Including Portion Attributable to Contingently Redeemable Noncontrolling Interest Comprehensive income Change in redemption value of contingently redeemable noncontrolling interests. Change in Redemption Value of Contingently Redeemable Noncontrolling Interests Change in value of redeemable non-controlling interest Stock Issued During Period, Value, Stock Options Exercised Stock option exercises Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised, Common shares under option Stock option exercises, shares Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Stock option tax adjustment Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition Stock option compensation expense (note 21) Noncontrolling Interest, Increase from Business Combination Non-controlling interest acquired in a business combination (note 23) Stock Repurchased and Retired During Period, Value Shares repurchased (note 20) Stock Repurchased and Retired During Period, Shares Shares repurchased, shares Stock repurchased during period, shares Dividends, Common Stock, Cash Cash dividends paid (note 20) Temporary Equity, Net Income Net income Other Comprehensive Income, Net of Tax, Attributable to Redeemable Noncontrolling Interest Other Comprehensive Income, Net of Tax, Attributable to Redeemable Noncontrolling Interest Other comprehensive income Comprehensive Income, Net of Tax, Attributable to Redeemable Noncontrolling Interest Comprehensive Income, Net of Tax, Attributable to Redeemable Noncontrolling Interest Comprehensive Income attributable redeemable non-controlling interests Temporary Equity, Carrying Amount, Period Increase (Decrease) Change in value of contingently redeemable non-controlling interest Dividends, Redeemable Noncontrolling Interests Dividends, Redeemable Noncontrolling Interests Cash dividends paid (note 20) Condensed Consolidated Statement of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments for items not affecting cash: Inventory Write-down Inventory write down Inventory write down (note 13) Stock or Unit Option Plan Expense Stock option compensation expense (note 21) Stock option compensation expense Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Equity income less dividends received Foreign Currency Transaction Gain (Loss), Unrealized Unrealized foreign exchange gain Increase (Decrease) in Operating Capital Net changes in operating assets and liabilities (note 11) Net changes in operating assets and liabilities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Investing activities: Payments to Acquire Interest in Subsidiaries and Affiliates Acquisition of Mascus (note 23) Payments to Acquire Property, Plant, and Equipment Property, plant and equipment additions Payments to Acquire Intangible Assets Intangible asset additions Proceeds from Sale of Property Held-for-sale Proceeds on disposition of property, plant and equipment Payments for (Proceeds from) Other Investing Activities Other, net Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Financing activities: Proceeds from Issuance of Common Stock Issuances of share capital Payments for Repurchase of Common Stock Share repurchase (note 20) Payments of Ordinary Dividends, Common Stock Dividends paid to stockholders (note 20) Payments of Ordinary Dividends, Noncontrolling Interest Dividends paid to contingently redeemable non-controlling interests Proceeds from Short-term Debt Proceeds from short-term debt Repayments of Short-term Debt Repayment of short-term debt Repayments of Long-term Capital Lease Obligations Repayment of finance lease obligations Proceeds from (Payments for) Other Financing Activities Other, net Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Effect of Exchange Rate on Cash and Cash Equivalents Effect of changes in foreign currency rates on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Increase in cash and cash equivalents General Information [Abstract] Nature of Operations [Text Block] General Information Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Significant Accounting Policies Significant Judgments, Estimated and Assumptions [Abstract] Significant Judgments, Estimates and Assumptions [Abstract] Significant Judgments, Estimated And Assumptions Significant Judgments, Estimated And Assumptions Significant Judgments, Estimates and Assumptions Seasonality of Operations [Abstract] Seasonality of Operations [Abstract] Seasonality of Operations [Text Block] Seasonality of Operations [Text Block] Seasonality of Operations Segmented Information [Abstract] Segment Reporting Disclosure [Text Block] Segmented Information Revenues [Abstract] Revenues Disclosure [Text Block] Revenues Disclosure [Text Block] Revenues Operating Expenses [Abstract] Operating Expenses Disclosure [Text Block] Operating Expenses Disclosure [Text Block] Operating Expenses Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Taxes Contingently Redeemable Non-controlling Interest in Ritchie Bros. Financial Services [Abstract] Contingently Redeemable Non-controlling Interest in Ritchie Bros. Financial Services Earnings Per Share Attributable to Stockholders [Abstract] Earnings Per Share [Text Block] Earnings Per Share Attributable to Stockholders Supplemental Cash Flow Information [Abstract] Cash Flow, Supplemental Disclosures [Text Block] Supplemental Cash Flow Information Fair Value Measurement [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurement Inventory [Abstract] Inventory Disclosure [Text Block] Inventory Assets Held For Sale [Abstract] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Assets Held For Sale Property, Plant and Equipment [Abstract] Property, Plant and Equipment Disclosure [Text Block] Property, Plant and Equipment Goodwill and Intangible Assets Disclosure [Abstract] Intangible Assets Disclosure [Text Block] Intangible Assets Goodwill Disclosure [Text Block] Goodwill Equity-Accounted Investments [Abstract] Equity Method Investments and Joint Ventures Disclosure [Text Block] Equity-Accounted Investments Debt [Abstract] Debt Disclosure [Text Block] Debt Equity and Dividends [Abstract] Stockholders' Equity Note Disclosure [Text Block] Equity and Dividends Share-Based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Share-Based Payments Contingencies [Abstract] Legal Matters and Contingencies [Text Block] Contingencies Business Combinations [Abstract] Business Combination Disclosure [Text Block] Business Combination Basis of Accounting, Policy [Policy Text Block] Basis of Preparation Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Cost of Sales, Policy [Policy Text Block] Costs of Services, Excluding Depreciation and Amortization Expenses Early Adoption of New Accounting Pronouncements [Policy Text Block] Early Adoption of New Accounting Pronouncements [Policy Text Block] New and Amended Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Standards Not Yet Adopted Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Schedule of Revenue and (Loss) Income Before Taxes by Segment Schedule Of Service Revenues [Table Text Block] Schedule Of Service Revenues [Table Text Block] Revenue from the Rendering of Services Schedule Of Net Profits On Inventory Sales Included In Commissions [Table Text Block] Schedule Of Net Profits On Inventory Sales Included In Commissions [Table Text Block] Net Profits on Inventory Sales Included in Commissions Schedule of Cost of Services [Table Text Block] Schedule of Cost of Services [Table Text Block] Schedule of Direct Operating Expenses Schedule Of Selling General And Administrative Expenses [Table Text Block] Schedule Of Selling General And Administrative Expenses [Table Text Block] Schedule of Selling, General and Administrative Expenses Schedule Of Depreciation And Amortization Expenses [Table Text Block] Schedule Of Depreciation And Amortization Expenses [Table Text Block] Schedule of Depreciation and Amortization Expenses Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Computation of Basic and Diluted Earnings Per Share Cash Flow, Operating Capital [Table Text Block] Schedule of Net Changes in Operating Assets and Liabilities Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of Supplemental Cash Flow Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Fair Value Assets Recurring and Nonrecurring Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Summary of Assets Held For Sale Property, Plant and Equipment [Table Text Block] Schedule of Property, Plant and Equipment Schedule of assets, excluding financial assets and goodwill, lacking physical substance including indefinite and finite life. Schedule Of Indefinite-Lived And Definite-Lived Intangible Assets [Table Text Block] Schedule of Indefinite-Lived and Definite-Lived Intangible Assets Schedule of Goodwill [Table Text Block] Schedule of Goodwill Equity Method Investments [Table Text Block] Summary of Investments Schedule of Debt [Table Text Block] Schedule of Debt Dividends Declared [Table Text Block] Schedule of Quarterly Dividends Declared and Paid Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Stock Option Plan [Member] Stock Option Plan [Member] Stock Option Plan [Member] Performance Share Unit Plans [Member] Performance Share Unit Plans [Member] Performance Share Unit Plans [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Compensation Costs Related to Share-Based Payments Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Summary of Stock Option Activity Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Summary of Stock Option and Performance Share Unit Pricing Assumptions Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Summary of Share Unit Activity Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Assets Acquired and Liabilities Assumed Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting [Line Items] Segment Reporting Information [Line Items] Number of Reportable Segments Number of reportable segments Segments [Axis] Segment [Domain] Segments [Domain] Core Auction [Member] Core Auction [Member] Core Auction [Member] Other includes results of various online services, which are not material to the Company's consolidated financial statements. Other Reporting Unit [Member] Other Reporting Unit [Member] Other, Interest And Income Tax Expense Other, Interest And Income Tax Expense Other and income tax expense Aggregate commissions earned from sales at auctions and online marketplace sales during the reporting period in the normal course of business. Commissions from sales at auctions represent the percentage earned on the gross auction proceeds from equipment and other assets sold where the Company acts as an agent in rendering its services. Commission Revenue Commissions Aggregate administration and documentation fees on the sale of certain lots sold at auction, advertising fees, financing fees, technology fees, and fees earned from online marketplace sales during the reporting period in the normal course of business. Fees also include software subscription and license fees and amounts paid by customers. Fees Revenue Fees Aggregate commissions earned during the reporting period from sales of inventory at auctions where the Company acts as an agent, taking title of the inventory for a short period of time while rendering services in the normal course of business. The risks and rewards of ownership of the inventory are not substantially different from the risks and rewards associated with the Company's underwritten guarantee contracts. Revenue, Inventory Sales Revenue from inventory sales The aggregate cost related to services rendered by the Company during the reporting period wherein the Company acts as an agent in selling inventory at auctions held in the normal course of business. Cost of Inventory Sold Cost of inventory sold Inventory, Net Profit Included In Commisions Inventory, Net Profit Included In Commisions Net profits on inventory Cost of Services, Direct Labor Employee compensation expenses Amount of rent and costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property directly related to revenues. Buildings, Facilities and Technology Expenses Buildings, facilities and technology expenses Costs of travel, advertising, and promotion that are directly related to services rendered by an entity during the reporting period. Cost Of Travel Advertising And Promotion Travel, advertising and promotion expenses Other Cost of Operating Revenue Other costs of services The amount of expenditures for salaries, wages, profit sharing and incentive compensation, and other employee benefits, including equity-based compensation, and pension and other postretirement benefit expense not directly related to revenues. Employee compensation expense Employee compensation expenses Amount of rent and costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property not directly related to revenues. Building, facility and technology expense Buildings, facilities and technology expenses Travel, advertising, and promotion expense that are not directly related to services rendered by an entity during the reporting. Travel Advertising And Promotion Expense Travel, advertising and promotion expense Professional Fees Professional fees Other Selling, General and Administrative Expense Other SG&A expenses Depreciation Depreciation expense Amortization Amortization expense Effective Income Tax Rate Reconciliation, Percent Effective income tax rate Redeemable Noncontrolling Interest, by Legal Entity [Table] Legal Entity [Axis] Entity [Domain] Entity [Domain] Ritchie Bros Financial Services [Member] Ritchie Bros Financial Services [Member] Ritchie Bros. Financial Services [Member] Redeemable Noncontrolling Interest [Line Items] The parent entity's interest in net assets of the subsidiary, expressed as a percentage. Majority Interest, Ownership Percentage by Parent Percentage of ownership interest Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Percentage ownership by non-controlling interest holders Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Potential common share excluded from computation of diluted earnings per share (shares) Net Income (Loss) Available to Common Stockholders, Basic Basic, Net income attributable to stockholders Net Income (Loss) Available to Common Stockholders, Diluted Diluted, Net income attributable to stockholders Weighted Average Number Diluted Shares Outstanding Adjustment Effect of dilutive securities: Stock options, shares Weighted Average Number Diluted Shares Outstanding Adjustment, Per Share Weighted Average Number Diluted Shares Outstanding Adjustment, Per Share Effect of dilutive securities: Stock options, Per share amount Increase (Decrease) in Restricted Cash for Operating Activities Restricted cash Increase (Decrease) in Accounts Receivable Trade and other receivables Increase (Decrease) in Inventories Inventory The increase (decrease) during the reporting period in the amount due from customers, whihc arise when the Company pays customers (owners), in advance, a portion of the expected gross auction proceeds from the sale of related assets at future auctions. Increase Decrease In Advances Against Auction Contracts Advances against auction contracts Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and deposits Increase (Decrease) in Income Taxes Receivable Income taxes receivable The increase (decrease) during the period in the amount due to consignors for equipment and other assets accepted for auction by the Company that are payable within one year (or the operating cycle, if longer). Increase Decrease In Auction Proceeds Payable Auction proceeds payable Increase (Decrease) in Accounts Payable, Trade Trade and other payables Increase (Decrease) in Income Taxes Payable Income taxes payable Increase (Decrease) in Share Unit Liability Increase (Decrease) in Share Unit Liability Share unit liabilities Increase (Decrease) in Other Operating Liabilities Other Interest Paid, Net Interest paid, net of interest capitalized Proceeds from Interest Received Interest received Income Taxes Paid, Net Net income taxes paid Capital Lease Obligations Incurred Non-cash purchase of property, plant and equipment under capital lease Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Cash and Cash Equivalents, Fair Value Disclosure Cash and cash equivalents Fair value of the cash and cash equivalent items which are restricted as to withdrawal or usage. Restricted Cash, Fair Value Disclosure Restricted Cash Debt Instrument, Fair Value Disclosure Debt instrument Percentage Of Inventory Held And Expected To Be Sold Percentage Of Inventory Held And Expected To Be Sold Percentage of inventory held and is expected to be sold Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Disposal Group, Including Discontinued Operation, Timing of Disposal Disposal Group, Including Discontinued Operation, Timing of Disposal Timing of sale Increase (decreas) in amount of costs inlcuding, foreign exchange gains (losses) and disposal costs associated with assets held-for-sale that are not part of adisposal group, expected to be sold within a year or the normal operating cycle, if longer. Assets Held-for-sale, Not Part of Disposal Group, Other Increase (Decrease) Other Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Gross Cost Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation Interest Costs Related To Qualifying Assets, Weighted Average Rate Interest Costs Related To Qualifying Assets, Weighted Average Rate Interest costs, weighted average rate Capitalized Computer Software, Additions Capitalized cost of software under development Schedule of Indefinite-Lived And Finite-Lived Intangible Assets [Table] Schedule Of Indefinite-Lived And Finite-Lived Intangible Assets [Table] Indefinite-Lived and Finite-Lived Intangible Assets By Major Class [Line Items] Indefinite-Lived and Finite-Lived Intangible Assets By Major Class [Line Items] Finite-Lived Intangible Assets, Gross Cost Indefinite-Lived Intangible Assets (Excluding Goodwill) Cost Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization Goodwill, Period Increase (Decrease) Additions (note 23) Goodwill, Translation Adjustments Foreign exchange movement Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity Method Investment, Ownership Percentage Ownership percentage Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Debt [Line Items] Debt Instrument, Face Amount Line of credit facility, current amount Short-term Debt, Weighted Average Interest Rate Short-term debt weighted averate interest rate Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing capacity Long-term Debt Long-term Debt, Total Debt, Long-term and Short-term, Combined Amount Total debt Debt Instrument, Interest Rate, Stated Percentage Interest rate Debt Instrument, Maturity Date Maturity date of term loan unsecured debt Dividends Payable [Table] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Dividends Payable [Line Items] Preferred Stock, Shares Issued Preferred shares issued Treasury Stock Acquired, Average Cost Per Share Stock repurchased during period, per share Common Stock, Dividends, Per Share, Declared Dividends declared (usd per share) Dividends Payable, Date to be Paid Payment date Dividends Payable, Date of Record Record date Adjustment for Long-term Intercompany Transactions, Net of Tax Intra-entity foreign currency transactions Dividends Payable, Date Declared Declaration date Dividends Total dividends Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Measurement Period Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Measurement Period Risk free interest rate measurement period Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Expected Term Measurement Period Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Expected Term Measurement Period Expected life measurement period Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Measurement Period Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Measurement Period Expected volatility measurement period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Unrecognized compensation costs Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Unrecognized compensation costs, period for recognition Share Based Compensation Arrangement By Share Based Payment Award, Number Of Plans Share Based Compensation Arrangement By Share Based Payment Award, Number Of Plans Number of plans Share-Based Compensation Arrangement by Share-Based Payment Award, Estimated Weighted Average Price Period Share-Based Compensation Arrangement by Share-Based Payment Award, Estimated Weighted Average Price Period Estimated weighted average price period Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Units granted Granted, Number of units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average grant date fair value of units granted Granted, Weighted average grant date fair falue (per share) Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Employee service period Employee Stock Purchase Plan, Maximum Annual Contributions Per Employee, Percent Employee Stock Purchase Plan, Maximum Annual Contributions Per Employee, Percent Maximum employee contribution, percentage Employee Stock Purchase Plan, Employer Matching Contribution, Percent of Match Employee Stock Purchase Plan, Employer Matching Contribution, Percent of Match Employer matching contribution, percentage Restricted Stock or Unit Expense Share unit expense Employee Stock Purchase Plan (ESPP), Compensation Expense Employee Stock Purchase Plan (ESPP), Compensation Expense Employee share purchase plan - employer contributions Allocated Share-based Compensation Expense Total comensation costs related to share based payments Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding ending balance, Common shares under option Outstanding beginning balance, Common shares under option Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Granted, Common shares under option Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Forfeited, Common shares under option Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable, Common shares under option Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding ending balance, Weighted average exercise price (per share) Outstanding beginning balance, Weighted average exercise price (per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted, Weighted average exercise price (per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised, Weighted average exercise price (per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Forfeited, Weighted average exercise price (per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable, Weighted average exercise price (per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding, Weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable, Weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Exercised, Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Outstanding, Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Exercisable, Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Of Comparable Companies Share Based Compensation Arrangement By Share Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Of Comparable Companies Average expected volatility of comparable companies Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number Outstanding ending balance, Number of units Outstanding beginning balance, Number of units Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised Vested and settled, Number of units Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures Forfeited, Number of units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Outstanding ending balance, Weighted average grant date fair value (per share) Outstanding beginning balance, Weighted average grant date fair value (per share) Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Exercises In Period, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Exercises In Period, Weighted Average Grant Date Fair Value Vested and settled, Weighted average grant date fair value (per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited, Weighted average grant date fair value (per share) Schedule of Guarantor Obligations [Table] Guarantor Obligations [Line Items] Minimum level of proceeds guaranteed to consignors on the sale at auction of that consignor's equipment. Guarantor Obligations, Proceeds on Auction Sale Assets guaranteed under contract Guarantor Obligations, Proceeds on Auction Sale, Proceeds Percentage Guarantor Obligations, Proceeds on Auction Sale, Proceeds Percentage Percentage of assets expected to be sold Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Payments to Acquire Businesses, Gross Purchase price Cash consideration Business Acquisition, Percentage of Voting Interests Acquired Voting equity interests acquired, percentage Equity interests acquired, percentage Business Combination, Contingent Consideration, Liability Contingent consideration Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Fair value of the non-controlling interest Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Revenue of since acquisition date Business Acquisition, Transaction Costs Legal and other acquisition-related costs Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Costs Obligation to pay additional amount Period in which the company has an obligation to pay additional amounts, starting from the acquisition date 'Period in Which There is Obligation to Pay Period to make additional amount of obligation upon achievement of certain condition Additional amounts which the Company may pay to the former owners of the acquiree basesd on the achievement of certain operating performance targets over the next three-year period. Business Combination, Contingent Consideration, Fair Value Fair value of contingent consideration Business Combination, Consideration Transferred, Noncontrolling Equity Interests Business Combination, Consideration Transferred, Noncontrolling Equity Interests Non-controlling Interest Business Combination, Consideration Transferred Total fair value at Xcira acquisition date Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Trade and other receivables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Prepaid expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Other non-current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Trade and other payables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Other non-current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent Deferred tax liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Fair value of identifiable net assets acquired Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Amortization life Subsequent Event [Abstract] Subsequent Event [Table] Subsequent Event [Line Items] Noncontrolling Interest [Member] Non-controlling interest [Member] Business Acquisition [Axis] Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Mascus International Holdings BV [Member] Mascus International Holdings Bv [Member] Mascus International Holdings BV [Member] Xcira LLC Xcira Llc [Member] Xcira LLC [Member] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments [Member] Operating Segments [Member] Material Reconciling Items [Member] Segment Reconciling Items [Member] Financial Instrument [Axis] Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Financial Instruments [Domain] Short Term Debt [Member] Short-term Debt [Member] Long Term Debt, Current [Member] Long Term Debt Current [Member] Long Term Debt, Current [Member] Long Term Debt [Member] Long-term Debt [Member] Measurement Basis [Axis] Portion At Fair Value Fair Value Disclosure [Member] Portion at Fair Value Measurement [Member] Carrying Reported Amount Fair Value Disclosure [Member] Carrying Amount [Member] Estimate Of Fair Value Fair Value Disclosure [Member] Fair Value [Member] Measurement Frequency [Axis] Fair Value Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value Measurements Recurring [Member] Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Plan Asset Measurement [Domain] Fair Value Inputs Level1 [Member] Level 1 [Member] Fair Value Inputs Level2 [Member] Level 2 [Member] Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Land And Land Improvements [Member] Land and Improvements [Member] Building [Member] Buildings [Member] Yard and Automotive Equipment [Member] Yard And Automotive Equipment [Member] Yard and Automotive Equipment [Member] Computer Equipment [Member] Computer Software and Equipment [Member] Office Equipment [Member] Office Equipment [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Asset Under Construction [Member] Assets under Development [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships [Member] Customer Relationships [Member] Computer Software Intangible Asset [Member] Software [Member] Indefinite-lived Intangible Assets [Axis] Indefinite Lived Intangible Assets Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Trademarks And Trade Names [Member] Trade Names and Trademarks [Member] Computer Software Intangible Asset Under Development [Member] Computer Software Intangible Asset Under Development [Member] Software Under Development [Member] Investment, Name [Axis] Equity Method Investee Name [Domain] Equity Method Investment, Type [Domain] Cura Classis Entities [Member] Cura Classis Entities [Member] Cura Classis Entities [Member] Other Equity Investments [Member] Other Equity Investments [Member] Other Equity Investments [Member] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Uncommitted Credit Facilities [Member] Uncommitted Credit Facilities [Member] Uncommitted Credit Facilities [Member] 4.225 % Term Loan, Due May 2022 [Member] Four Point Two Two Five Percent Term Loan Due May Twenty Twenty Two [Member] 4.225% Term Loan, Due May 2022 [Member] 3.59% Term Loan, Due May 2022 [Member] Three Point Five Nine Percent Term Loan Due May Twenty Twenty Two [Member] 3.59% Term Loan, Due May 2022 [Member] 6.385% Term Loan, Due May 2016 [Member] Six Point Three Eight Five Percent Term Loan Due May Twenty Sixteen [Member] 6.385% Term Loan, Due May 2016 [Member] Dividends [Axis] Dividends [Domain] Dividends [Domain] Fourth Quarter 2015 [Member] Fourth Quarter2015 [Member] Fourth Quarter 2015 [Member] Fourth Quarter 2014 [Member] Fourth Quarter2014 [Member] Fourth Quarter 2014 [Member] Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type [Domain] Restricted Share Units and Deferred Share Units [Member] Restricted Share Units And Deferred Share Units [Member] Restricted Share Units and Deferred Share Units [Member] Employee Stock Option [Member] Stock Options [Member] Performance Shares [Member] Performance Share Units [Member] Restricted Stock Units R S U [Member] Restricted Share Units [Member] Deferred Share Units [Member] Deferred Share Units [Member] Deferred Share Units [Member] Guarantor Obligations, Nature [Axis] Guarantee Obligations Nature [Domain] Guarantor Obligations, Nature [Domain] Industrial Assets Guaranteed Under Contract [Member] Industrial Assets Guaranteed Under Contract [Member] Industrial Assets Guaranteed Under Contract [Member] Agricultural Assets Guaranteed Under Contract [Member] Agricultural Assets Guaranteed Under Contract [Member] Agricultural Assets Guaranteed Under Contract [Member] Future Software Development [Member] Future Software Development [Member] Future Software Development [Member] Related Party [Axis] Related Party [Domain] Related Party [Domain] Xcira Founder [Member] Xcira Founder [Member] Xcira Founder [Member] Technology Based Intangible Assets [Member] Technology [Member]