Net Income Per Share Reconciliation of Weighted Average Common Shares Outstanding (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding (basic) (in shares)	162,506	162,061	162,577	162,416
Impact of common stock equivalents (in shares)	950	518	1,057	667
Weighted average shares outstanding (diluted) (in shares)	163,456	162,579	163,634	163,083
Basic (in dollars per share)	$ 0.45	$ 0.38	$ 1.27	$ 0.78
Diluted (in dollars per share)	$ 0.45	$ 0.38	$ 1.26	$ 0.78