Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity, Class of Treasury Stock [Line Items]
Shares repurchased	0.0	1.0	0.9
Value of shares repurchased		$ 35,000	$ 50,000
Treasury stock acquired, average cost per share (in usd per share)		$ 35.83	$ 56.19
11/29/2018 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount (in usd)	$ 300,000