Fair Value Inputs [Abstract] Fair Value, Measurement Inputs, Disclosure [Text Block] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment Reporting Disclosure [Text Block] Earnings Per Share [Abstract] Earnings Per Share [Text Block] Earnings Per Share [Text Block] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments Disclosure [Text Block] Equity Method Investments Disclosure [Text Block] Investments In and Advances To Affiliates, Schedule Of Investments [Abstract] Investments In and Advances To Affiliates, Schedule Of Investments [Text Block] Investments in and Advances to Affiliates, Schedule of Investments [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] New Accounting Pronouncements and Changes In Accounting Principles [Abstract] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events [Text Block] Accounting Policies [Abstract] Basis of Accounting, Policy [Policy Text Block] Foreign Currency Transactions and Translations Policy [Policy Text Block] Comprehensive Income, Policy [Policy Text Block] Reclassification, Policy [Policy Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Fair Value Measurements, Nonrecurring [Table Text Block] Statement Of Financial Position [Abstract] Statement [Table] Class of Stock [Axis] Class of Stock [Domain] Common Class A [Member] Class A common stock [Member] Common Class B [Member] Class B common stock [Member] Statement [Line Items] Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets Cash and Cash Equivalents, At Carrying Value Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Certificates of Deposit, at Carrying Value Certificate of deposit Restricted Cash and Investments, Current Restricted cash Marketable Securities, Current Marketable securities Accounts Receivable, Net, Current Accounts receivable, net Inventory, Net Inventory Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets Notes, Loans and Financing Receivable, Net, Current Current portion of loans receivable Total Current Assets Total current assets Property, Plant and Equipment, Net Property, plant and equipment, net Property plant and equipment, net Construction In Progress, Gross Construction in progress Inventory, Noncurrent Inventory, non-current Notes, Loans and Financing Receivable, Net, Noncurrent Loans receivable Equity Method Investments Investment in OC-BVI Equity Method Investments Investment in OC-BVI Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Goodwill Goodwill Long-term Investments, Total Investment in land Liabilities and Equity LIABILITIES AND EQUITY Liabilities, Current [Abstract] Current liabilities Accounts Payable, Other, Current Accounts payable and other current liabilities Dividends Payable Current Dividends payable Loans Payable, Current Demand loan payable Long-Term Debt, Current Maturities Current portion of long term debt Purchase Obligation, Total Land purchase obligation Total Current Liabilities Total current liabilities Other Liabilities Other liabilities Liabilities Total liabilities Redeemable Preferred Stock, 0.60 Par Value. Authorized 200,000 Shares Issued and Outstanding 22,427 and 16,784 Shares, Respectively Redeemable preferred stock, $0.60 par value. Authorized 200,000 shares; issued and outstanding 41,853 and 37,408 shares, respectively Common Stock, Value, Issued Common stock Additional Paid-In Capital Additional paid-in capital Retained Earnings Retained earnings Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Cumulative translation adjustment Total Consolidated Water Co. Ltd. Stockholders Equity Total Consolidated Water Co. Ltd. stockholders' equity Non-Controlling Interests Non-controlling interests Stockholders' Equity, Including Portion Attributable To Noncontrolling Interest Total equity Total Liabilities and Equity Total liabilities and equity Schedule Of Segment Reporting Information, By Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule Of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Accounting Policies [Table] Legal Entity [Axis] Entity [Domain] Cw Bermuda [Member] Segments [Axis] Segments [Domain] Retail [Member] Bulk [Member] Services [Member] Capitalized Engineering Labor and Materials Cost [Member] Accounting Policies [Line Items] Foreign Currency Transaction Gain (Loss), before Tax Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Assets, Fair Value Disclosure, Recurring Total recurring Investments, All Other Investments [Abstract] Fair Value Inputs, Instruments Classified in Shareholders' Equity, Quantitative Information [Table] Fair Value Inputs, Equity, Quantitative Information [Line Items] Investments in and Advances to Affiliates, at Fair Value Balance, Beginning Balance, Ending Investments in and Advances to Affiliates, at Fair Value, Gross Additions Profit sharing and equity from earnings of OC-BVI Investments in and Advances to Affiliates, at Fair Value, Gross Reductions Distribution of earnings from OC-BVI Schedule of Segment Reporting Information, by Segment [Table] Equity Components [Axis] Equity Component [Domain] Member Units [Member] Segment Reporting Information [Line Items] Revenues, Total Revenues Total revenues Cost Of Revenue Cost of revenues Total cost of revenues Gross Profit Gross profit General and Administrative Expense General and administrative expenses Income From Operations Income (loss) from operations Income from operations Other Income, Net Other income, net Other income (expense), net Net Income (Loss), Including Portion Attributable To Noncontrolling Interest Consolidated net income Net income Net income Income Attributable To Non-Controlling Interests Income attributable to non-controlling interests Net Income Attributable To Consolidated Water Co. Ltd. Stockholders Net income attributable to Consolidated Water Co. Ltd. stockholders Net income attributable to Consolidated Water Co. Ltd. common stockholders Net income attributable to Consolidated Water Co. Ltd. stockholders Assets Total assets Total assets Depreciation, Amortization and Accretion, Net, Total Redeemable Preferred Stock, Par Value Redeemable preferred stock, par value (in dollars per share) Redeemable Preferred Stock, Authorized Redeemable preferred stock, authorized Redeemable Preferred Stock, Issued Redeemable preferred stock, issued Redeemable Preferred Stock, Outstanding Redeemable preferred stock, outstanding Common Stock, Par Value Common stock, par value (in dollars per share) Common Stock, Authorized Common stock, authorized Common Stock, Issued Common stock, issued Common Stock, Outstanding Common stock, outstanding Earnings Per Share [Table] Scenario [Axis] Scenario, Unspecified [Domain] Earnings Per Share [Line Items] Dividends, Preferred Stock Less: preferred stock dividends Net Income (Loss) Available To Common Stockholders, Basic Net income available to common shares in the determination of basic earnings per common share Basic Earnings Per Share Weighted average number of common shares in the determination of basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in shares) Basic earnings per share (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock Weighted average number of preferred shares outstanding during the period (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Potential dilutive effect of unexercised options (in shares) Diluted Earnings Per Share Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in shares) Diluted earnings per share (in shares) Schedule of Investments [Table] Ocean Conversion (Bvi) Ltd [Member] Ocean Conversion (BVI) Ltd [Member] Schedule of Investments [Line Items] Equity Method Investment, Summarized Financial Information, Current Assets Current assets Equity Method Investment, Summarized Financial Information, Noncurrent Assets Non-current assets Equity Method Investment, Summarized Financial Information, Assets Total assets Equity Method Investment, Summarized Financial Information, Current Liabilities Current liabilities Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities Non-current liabilities Equity Method Investment, Summarized Financial Information, Liabilities Total liabilities Equity Method Investment, Summarized Financial Information, Revenue Revenues Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) Gross Profit Equity Method Investment, Summarized Financial Information, Income (Loss) From Continuing Operations Before Extraordinary Items Income from operations Equity Method Investment Summarized Financial Information Other Income Expense Other income (expense), net The amount of other income (loss) reported by an equity method investment of the entity. Equity Method Investment, Summarized Financial Information, Net Income (Loss) Net income attributable to controlling interests Investment, Name [Axis] Investment, Name [Domain] Baughers Bay [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Management Service [Member] Agreement [Axis] Equity Method Investment, Ownership Percentage Equity Method Investment, Ownership Percentage Equity Method Investments Voting Shares Percentage Represents the equity method investments voting shares percentage. Equity Method Investment, Interest In Profit Percentage Equity Method Investment, Interest In Profit Percentage The percentage of total interest in subsidiary after considering the effect of the profit sharing. Plant Capacity Plant Capacity (Gallons) Plant capacity in million gallons per day. PurchasePriceAllocationPlant1 Purchase Price Allocation Plant The cost allocated to a plant used in the normal course of business, not including a plant that is held-for-sale. Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Court Award Amount Court Award Amount Represents the value of court award. Cost Incurred To Expand Plant Capacity Represents the cost incurred to expand the plant capacity. Proceeds From Legal Settlements Proceeds from Legal Settlements Dismissed Claim Amount The dismissed claim amount for compensation of the expenditures made to expand the production capacity of the plant. Legal Settlement Legal Settlement This amount represents the legal settlement paid for water produced during the period. Legal Settlement Recoveries Legal Settlement Recoveries The amount recovered from legal settlements. These recoveries reduce costs and losses. Legal Settlement Recovered Amount Legal Settlement Recovered Amount Amount recovered from legal settlements. Legal Settlement Recovery Principle Amount Due Legal Settlement Recovery Principle Amount Due Principle amount of due from the plaintiff as on the date specified. Legal Settlement Recovery Due Legal Settlement Recovery Due Amount of due from plaintiff in legal settlement recovery. Income (Loss) from Equity Method Investments Equity in earnings of OC-BVI Profit Loss From Subsidiaries Profit sharing income from OC-BVI This item represents the entity's share of profit or (loss) from its unconsolidated equity method investee. Other than Temporary Impairment Losses, Investments Investments Carrying Value Represents the amount of carrying value of investments as on the reporting period. Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event [Member] N S C Agua [Member] Npdc Water Company Ltd [Member] Range [Axis] Range [Domain] Minimum [Member] Maximum [Member] Income Tax Authority, Name [Axis] Consolidated Ownership Interest Percentage of ownership interest as consolidated as of the period in an acquired company. Total Percentage Of Ownership Interest In An Acquired Company Total Percentage of ownership interest acquired as of the period in an acquired company. Seawater Reverse Osmosis Desalination Plant Per Day Processing Capacity The processing capacity per day seawater reverse osmosis desalination plant. Additional Prepayment Of Purchase Contract The additional prepayment to be paid on extended date for the extended purchase contract. Payments to Acquire Land Payment for investment in land Further Required Payment As Compensation For Operation and Maintenance Represents the compensation for operation and maintenance of equipment. Payments to Acquire Option The cash outflow for acquisition of option. Project Land Represents the amount of land purchased for new project during the reporting period. Initial Amount Paid Represents the amount of initial payment made relating to project land cost during the reporting period. Project Land Amount Due Represents the amount due relating to project land during the reporting period. Repayment Of Debt Through Issuance Of Shares Represents the amount of debt settled through issuance of shares. Lease Term Represents the period of lease. Debt Instrument, Description of Variable Rate Basis Payments for Compensation for Operation and Maintenance Represents the compensation for operation and maintenance of equipment paid. Income Statement [Abstract] Retail Water Revenue Retail water revenues Retail Water Revenue Bulk Water Revenue Bulk water revenues Bulk Water Revenue Sales Revenue, Services, Net Services revenues Cost Of Retail Water Cost of retail revenues Cost of Retail Water Cost Of Bulk Water Cost of bulk revenues Cost of Bulk Water Cost Of Services Revenues Cost of services revenues Other Income (Expense) Other income (expense): Interest Income, Other Interest income Interest Expense Interest expense Other Income Other Basic Earnings Per Common Share Attributable To Consolidated Water Co. Ltd. Common Stockholders Basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in dollars per share) Diluted Earnings Per Common Share Attributable To Consolidated Water Co. Ltd. Common Stockholders Diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders (in dollars per share) Dividends Declared Per Common Share Dividends declared per common share (in dollars per share) Weighted Average Number Of Common Shares Used In Determination Of Weighted average number of common shares used in the determination of: Commitments And Contingencies [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Retail Segment [Member] Category of Item Purchased [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Cw Bahamas [Member] Cw Belize [Member] Concentration Risk Benchmark [Axis] Statement of Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Foreign currency translation adjustment Other Comprehensive Income (Loss), Net of Tax, Total Total other comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total Comprehensive income Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest, Total Comprehensive income attributable to the non-controlling interest Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total Comprehensive income attributable to Consolidated Water Co. Ltd. stockholders Statement Of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Increase (Decrease) in Operating Capital [Abstract] Change in: Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities Payments to Acquire Restricted Certificates of Deposit Purchase of certificate of deposit Additions To Property, Plant and Equipment and Construction In Progress Additions to property, plant and equipment and construction in progress Proceeds from Sale of Property, Plant, and Equipment Proceeds from sale of equipment Proceeds From Equity Method Investment, Dividends Or Distributions Distribution of earnings from OC-BVI Collections Of Loans Receivable Collections on loans receivable Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities Payments Of Dividends Dividends paid Proceeds from (Repurchase of) Redeemable Preferred Stock, Total Repurchase of redeemable preferred stock, net Proceeds from Stock Options Exercised Proceeds received from exercise of stock options Repayments Of Long-Term Debt Principal repayments of long term debt Proceeds from Notes Payable Proceeds received from demand loan payable Effect of Exchange Rate on Cash, Total Effect of exchange rate changes on cash Net Increase In Cash and Cash Equivalents Net increase in cash and cash equivalents Interest Paid, Total Interest paid in cash Noncash Investing and Financing Items [Abstract] Non-cash investing and financing activities Stock Issued During Period, Value, Issued for Services Issuance of stock for services rendered Dividends Declared but Not yet Paid Dividends declared but not paid Future cash outflow to pay for dividend declared that have occurred. Organization, Consolidation and Presentation Of Financial Statements [Abstract] Nature Of Operations [Text Block] Nature of Operations [Text Block] Significant Accounting Policies [Text Block] Document And Entity Information [Abstract] Document Information [Table] Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Trading Symbol Entity Common Stock, Shares Outstanding Document Type Amendment Flag Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Other Assets, Noncurrent Other assets Commitments and Contingencies Commitments and contingencies Equity Document Information [Line Items] Increase (Decrease) in Restricted Cash Restriction on cash balance Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by (used in) financing activities Costs Incurred For Obligation Of Investment In land Obligation incurred (paid) for investment in land Amount of obligation incurred (paid) for investment in land in non-cash investing and financing activities. Transfers from Inventory to Property, Plant and Equipment and Construction in Progress Transfers from inventory to property, plant and equipment and construction in progress Value transferred from inventory to property, plant and equipment and construction in progress in noncash transactions. Land Subject to Ground Leases Agreement [Domain] Thousand Nine Hundred and Ninety Agreement [Member] 1990 Agreement [Member] Bar Bay Agreement [Member] Concentration Risk, Percentage Commitments And Contingencies [Line Items] Concentration Risk Benchmark [Domain] Sales Revenue, Net [Member] Gross Profit [Member] Goodwill, Impairment Loss, Net of Tax Business Acquisition, Percentage of Voting Interests Acquired Taxes Relating To Payments To Foreign Vendors Amount of taxes relating to payments to foreign Vendors subject to income taxes withholdings. Income Tax Authority, Name [Domain] Mexican Tax Authority [Member] Income Tax Examination, Penalties Expense Line of Credit, Collateral towards Tax litigation Amount of line of credit collateral towards tax litigation. Line of Credit, Additional Charges Amount of line of credit including additional charges. Redeemable Preferred Stock [Member] Common Stock [Member] Restricted Cash and Cash Equivalents Operating Leases, Rent Expense per month Value of Rent expenses that are paid for each month. Volume of Potable Water Supply as per agreement Volume of Potable Water Supply as per agreement (per week) Volume of Potable Water Supply as per agreement. Volume of Water to be supplied Volume of Water to be supplied (per day) Volume of water to be supplied as per the agreement. Stock Issued During Period, Shares, Issued for Services Income Tax Examination, Total Assessment value Value of total tax assessment done by the tax authority. Equity Method Investments [Table Text Block]