Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Schedule of Selected Quarterly Financial Data

Fiscal Quarters Year Ended December 31, 2015	First		Second		Third		Fourth
Revenues, net	$	416,166	$	404,605	$	451,493	$	430,601
Operating income		163,774		169,151		188,460		146,149
Net income		94,153		98,678		116,770		52,830
Earnings per share:
Basic earnings per share	$	1.03	$	1.07	$	1.27	$	0.57
Diluted earnings per share		1.00		1.05		1.24		0.56
Weighted average shares outstanding:
Basic weighted average shares outstanding		91,750		91,904		92,110		92,321
Diluted weighted average shares outstanding		93,934		94,050		94,157		94,350

Fiscal Quarters Year Ended December 31, 2014	First		Second		Third		Fourth
Revenues, net	$	253,908	$	273,502	$	295,283	$	376,697
Operating income		114,136		134,484		144,207		172,622
Net income		75,109		88,549		95,509		109,540
Earnings per share:
Basic earnings per share	$	0.91	$	1.07	$	1.14	$	1.25
Diluted earnings per share		0.88		1.03		1.11		1.21
Weighted average shares outstanding:
Basic weighted average shares outstanding		82,737		82,996		83,611		87,877
Diluted weighted average shares outstanding		85,695		85,817		86,134		90,240