101 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 103 - Statement - Consolidated Balance Sheets link:calculationLink link:presentationLink link:definitionLink 104 - Statement - Consolidated Balance Sheets (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 105 - Statement - Consolidated Statements of Operations link:calculationLink link:presentationLink link:definitionLink 106 - Statement - Consolidated Statements of Comprehensive Income (Loss) link:calculationLink link:presentationLink link:definitionLink 107 - Statement - Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 108 - Statement - Consolidated Statements of Stockholders' Equity link:calculationLink link:presentationLink link:definitionLink 109 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - Summary of Operations and Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - Restatement of Previously Issued Financial Statements link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - Fair Value of Financial Instruments and Concentration of Credit Risk link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - Fair Value Measurement link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - Property, Equipment and Software link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - Workers' Compensation Claims link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - Revolving Credit Facility and Long-Term Debt link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - 401(k) Savings Plan link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - Commitments link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - Income Taxes link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - Stock Incentive Plans link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - Stock Repurchase Program link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - Litigation link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - Quarterly Financial Information link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - Subsequent Events link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - Summary of Operations and Significant Accounting Policies (Policies) link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - Summary of Operations and Significant Accounting Policies (Tables) link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - Restatement of Previously Issued Financial Statements (Tables) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - Fair Value Measurement (Tables) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - Property, Equipment and Software (Tables) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - Workers' Compensation Claims (Tables) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - Commitments (Tables) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - Income Taxes (Tables) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - Stock Incentive Plans (Tables) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - Quarterly Financial Information (Tables) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - Summary of Operations and Significant Accounting Policies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - Summary of Operations and Significant Accounting Policies - Summary of Allowance for Doubtful Accounts (Detail) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - Summary of Operations and Significant Accounting Policies - Summary of Property, Equipment and Software Over Estimated Useful Life (Detail) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - Summary of Operations and Significant Accounting Policies - Summary of Basic and Diluted Common Shares Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - Restatement of Previously Issued Financial Statements - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 140 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Balance Sheets (Detail) link:calculationLink link:presentationLink link:definitionLink 141 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Balance Sheets (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 142 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Statements of Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 143 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Statements of Comprehensive (Loss) Income (Detail) link:calculationLink link:presentationLink link:definitionLink 144 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Statements of Comprehensive (Loss) Income (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 145 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Statements of Stockholders' Equity (Detail) link:calculationLink link:presentationLink link:definitionLink 146 - Disclosure - Restatement of Previously Issued Financial Statements - Impact on Consolidated Statements of Cash Flows (Detail) link:calculationLink link:presentationLink link:definitionLink 147 - Disclosure - Fair Value of Financial Instruments and Concentration of Credit Risk - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 148 - Disclosure - Fair Value Measurement - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 149 - Disclosure - Fair Value Measurement - Summary of Marketable Securities Measured at Fair Value on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 150 - Disclosure - Fair Value Measurements - Summary of Assets Measured at Fair Value on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 151 - Disclosure - Property, Equipment and Software - Summary of Property, Equipment and Software (Detail) link:calculationLink link:presentationLink link:definitionLink 152 - Disclosure - Workers' Compensation Claims - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 153 - Disclosure - Workers' Compensation Claims - Summarizes Aggregate Workers' Compensation Reserve Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 154 - Disclosure - Revolving Credit Facility and Long-Term Debt - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 155 - Disclosure - 401(k) Savings Plan - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 156 - Disclosure - Commitments - Summary of Minimum Annual Payments in Operating Lease Agreements (Detail) link:calculationLink link:presentationLink link:definitionLink 157 - Disclosure - Commitments - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 158 - Disclosure - Income Taxes - Summary of Provision for Income Taxes from Continuing Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 159 - Disclosure - Income Taxes - Summary of Deferred Income Tax Assets and Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 160 - Disclosure - Income Taxes - Summary of Effective Tax Rate for Continuing Operations Differed from U.S. Statutory Federal Tax Rate (Detail) link:calculationLink link:presentationLink link:definitionLink 161 - Disclosure - Income Taxes - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 162 - Disclosure - Stock Incentive Plans - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 163 - Disclosure - Stock Incentive Plans - Summary of Stock Options Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 164 - Disclosure - Stock Incentive Plans - Summary of Stock Options Exercised and Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 165 - Disclosure - Stock Incentive Plans - Summary of Fair Value of Stock Option Awards (Detail) link:calculationLink link:presentationLink link:definitionLink 166 - Disclosure - Stock Incentive Plans - Schedule of Restricted Stock Unit Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 167 - Disclosure - Stock Incentive Plans - Summary of Stock-Based Compensation Expense Related to Stock Option and Restricted Stock Unit Awards (Detail) link:calculationLink link:presentationLink link:definitionLink 168 - Disclosure - Stock Incentive Plans - Summary of Information about Stock Options Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 169 - Disclosure - Stock Repurchase Program - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 170 - Disclosure - Quarterly Financial Information - Summary of Quarterly Financial Information (Detail) link:calculationLink link:presentationLink link:definitionLink 171 - Disclosure - Quarterly Financial Information - Quarterly Balance Sheets (Detail) link:calculationLink link:presentationLink link:definitionLink 172 - Disclosure - Quarterly Financial Information - Quarterly Balance Sheets (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 173 - Disclosure - Quarterly Financial Information - Quarterly Statements of Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 174 - Disclosure - Subsequent Events - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink