Share-Based Compensation (Schedule of Selected Financial Impact of Share-Based Compensation) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 37,755	$ 30,951	$ 39,278
Income tax benefit resulting from share-based compensation expense	(4,734)	(3,965)	(4,861)
Net share-based compensation expense included in consolidated statements of income, excluding tax benefit from settlement of share-based awards	33,021	26,986	34,417
Income tax benefit resulting from settlement of share-based awards	(32,474)	(38,981)	(19,140)
Net expense (benefit) related to share-based compensation arrangements included in consolidated statements of income	547	(11,995)	15,277
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	4,044	3,415	2,681
Operating expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 33,711	$ 27,536	$ 36,597

Allocated Share-based Compensation Expense, Net of Tax, Excluding Tax Benefit From Settlement Of Share-based Awards

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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