Supplementary Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of Supplementary Quarterly Financial Data

	For the Three Months Ended
	March 31, 2019		June 30, 2019		September 30, 2019		December 31, 2019
Revenues	$	311,546	$	323,602	$	337,505	$	335,801
Cost of operations	163,069		165,609		174,867		171,156
Revenues less cost of operations	$	148,477	$	157,993	$	162,638	$	164,645
Net income	$	102,160	$	112,689	$	115,995	$	120,279
Net income attributable to common stockholders	$	94,770	$	104,828	$	108,087	$	112,282
Earnings per common share—basic	$	0.74	$	0.82	$	0.84	$	0.87
Earnings per common share—diluted	$	0.74	$	0.81	$	0.83	$	0.86
	For the Three Months Ended
	March 31, 2018		June 30, 2018		September 30, 2018		December 31, 2018
Revenues	$	285,485	$	296,813	$	306,953	$	307,353
Cost of operations	151,573		152,097		153,362		150,676
Revenues less cost of operations	$	133,912	$	144,716	$	153,591	$	156,677
Net income	$	95,430	$	102,713	$	139,687	$	109,250
Net income attributable to common stockholders	$	88,256	$	95,153	$	130,418	$	101,462
Earnings per common share—basic	$	0.70	$	0.75	$	1.03	$	0.80
Earnings per common share—diluted	$	0.70	$	0.75	$	1.02	$	0.80