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Share-Based Compensation (Schedule of Selected Financial Impact of Share-Based Compensation) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based compensation expense | $ 30,951 | $ 39,278 | $ 25,157
Income tax benefit resulting from share-based compensation expense | (3,965) | (4,861) | (4,190)
Net share-based compensation expense included in consolidated statements of income, excluding tax benefit from settlement of share-based awards | 26,986 | 34,417 | 20,967
Income tax benefit resulting from settlement of share-based awards | (38,981) | (19,140) | (21,496)
Net expense (benefit) related to share-based compensation arrangements included in consolidated statements of income | (11,995) | 15,277 | (529)
Cost of revenue |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based compensation expense | 3,415 | 2,681 | 2,816
Operating expenses |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based compensation expense | $ 27,536 | $ 36,597 | $ 22,341

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- Definition Allocated Share-based Compensation Expense, Net of Tax, Excluding Tax Benefit From Settlement Of Share-based Awards + References No definition available. + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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