Income Taxes Tax Provision and Applicable Rates (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Tax provision and applicable tax rates [Line Items]
Current Federal, State and Local, Tax Expense (Benefit)	$ 11,199	$ 17,036	$ 21,126	$ 38,565
Effective Income Tax Rate Reconciliation, Percent	24.31%	24.73%	19.62%	24.68%

Percentage 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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Period Type:	duration