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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Name:	us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Treasury Stock (Details) - USD ($) shares in Thousands, $ in Thousands	1 Months Ended	9 Months Ended
	Jul. 31, 2020	Sep. 30, 2020	Sep. 30, 2019
Treasury Stock
Common stock acquired, cost		$ 92,315	$ 17,293
Common stock repurchase authorization
Treasury Stock
Increase in stock repurchase plan authorized	$ 50,000
Authorized amount for repurchase of common stock	$ 300,000
Common stock acquired, shares		1,164
Common stock acquired, cost		$ 92,315
Remaining authorized repurchase amount		$ 85,001