Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions		1 Months Ended		3 Months Ended		12 Months Ended
	Apr. 28, 2022	Apr. 30, 2022	Mar. 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Jan. 01, 2021
Class of Stock [Line Items]
Retained earnings			$ 3,399,935	$ 3,399,935		$ 3,250,691
Shares repurchased in period (in shares)				8.5		19.0
Shares repurchased, weighted average price per share				$ 14.99		$ 15.30
Remaining authorized repurchase amount			$ 372,000	$ 372,000
Repurchase of common stock				$ 123,640	$ 0
Quarterly cash dividend paid (per share)			$ 0.08
Cash dividends			$ 25,800
Cumulative Effect, Period of Adoption, Adjustment
Class of Stock [Line Items]
Retained earnings							$ 68,300
Additional paid in capital							$ 68,300
Subsequent Event
Class of Stock [Line Items]
Shares repurchased in period (in shares)		3.0
Repurchase of common stock		$ 39,700
Quarterly cash dividend declared (per share)	$ 0.08