Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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-Publisher FASB
-Name Accounting Standards Codification
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Name:	us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Stockholders' Equity - Stock Repurchase Program (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Nov. 06, 2018
Class of Stock [Line Items]
Repurchase of common stock (shares)	0	1,647,078	58,713	2,938,722
Repurchase of common stock		$ 58,600,000	$ 1,900,000	$ 104,800,000
Common Stock
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount					$ 500,000,000.0
Stock Purchase Agreement [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 229,700,000		$ 229,700,000