Material Transactions Affecting Stockholders' Equity (Details) - USD ($)		3 Months Ended
	Mar. 09, 2020	Mar. 31, 2020	Mar. 19, 2020	Feb. 26, 2020	Feb. 25, 2020
Class of Stock [Line Items]
Stock repurchase program, authorized amount			$ 180,000,000	$ 200,000,000	$ 180,000,000
Common stock repurchased (in shares)		1,200,000
Total cost of common stock repurchased		$ 22,600,000
Bankmanagers Corporation
Class of Stock [Line Items]
Acquisitions, net of issuance costs (in shares)	4,930,231
Shares issued (in dollars per share)	$ 14.58