0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Statement link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952155 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Recent Accounting Pronouncements Recent Accounting Pronouncements (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Revenue and Deferred Costs Revenue and Deferred Costs (Notes) link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Fair Value Measures and Disclosures link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Leases Leases (Notes) link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Debt (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Income Taxes (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Stock Based Compensation (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Earnings Per Share Earnings Per Share (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Reportable Segment Information (Text Block) link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Subsequent Events Subsequent Events (Text Block) link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Fair Value Measures and Disclosures (Policies) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Leases Leases (Policies) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies- Loss on Disposal of Assets, net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Revenue and Deferred Costs Revenue and Deferred Costs (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Fair Value Measures and Disclosures (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Leases Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Stock Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Earnings Per Share Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Reportable Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies Purchase of Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Nature of Operations and Summary of Significant Accounting Policies Treasury Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue and Deferred Costs Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Revenue and Deferred Costs Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Revenue and Deferred Costs Revenue Recognition Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Revenue and Deferred Costs Revenue Recognition Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Revenue and Deferred Costs Contract Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Fair Value Measures and Disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Leases Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Leases Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Leases Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Debt Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Income Taxes Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Stock Based Compensation Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Unit Awards (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Stock Based Compensation PSU Measurement Date Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Earnings Per Share Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Reportable Segment Information Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Reportable Segment Information Reconciliation of Operating Profit by Segment to Consolidated (Details) link:presentationLink link:calculationLink link:definitionLink