Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings per Share
Adjustments to net income (in dollars)	$ 0	$ 0	$ 0
Antidilutive securities (in shares)	0	0	0
Numerator:
Net income	$ 284,392	$ 264,394	$ 183,682
Denominator:
Basic: weighted-average shares outstanding (in shares)	133,076,489	136,945,134	139,560,305
Add: weighted-average equity-based awards (in shares)	310,668	166,286	96,688
Diluted: weighted-average shares outstanding (in shares)	133,387,157	137,111,420	139,656,993
Basic earnings per share (in dollars per share)	$ 2.14	$ 1.93	$ 1.32
Diluted earnings per share (in dollars per share)	$ 2.13	$ 1.93	$ 1.32