Income Taxes Income Tax (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Valuation Allowance [Line Items]
Provision for income taxes	$ 25,415	$ 9,610
Effective Income Tax Rate Reconciliation, Percent	23.00%	23.20%

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration