Net Income Per Share Reconciliation of Weighted Average Common Shares Outstanding (Details) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding (basic) (in shares)	162,785	161,715	162,614	162,582
Impact of common stock equivalents (in shares)	1,073	552	1,124	744
Weighted average shares outstanding (diluted) (in shares)	163,858	162,267	163,738	163,326
Basic (in dollars per share)	$ 0.38	$ 0.24	$ 0.81	$ 0.40
Diluted (in dollars per share)	$ 0.38	$ 0.24	$ 0.81	$ 0.40