Quarterly Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information Table

	1st		2nd	3rd	4th
2017
Revenues	$	1,545,132	1,672,279	1,802,166	1,901,371
Net revenues	527,605		563,633	599,142	628,809
Net earnings	93,567		108,755	120,606	167,455
Net earnings attributable to shareholders	93,264		108,851	120,263	166,967
Diluted earnings attributable to shareholders per share	0.51		0.60	0.66	0.92
Basic earnings attributable to shareholders per share	0.52		0.60	0.67	0.94
2016
Revenues	$	1,418,472	1,475,164	1,562,394	1,642,007
Net revenues	517,069		553,117	545,259	548,591
Net earnings	97,047		116,439	107,949	111,098
Net earnings attributable to shareholders	96,584		116,052	107,581	110,590
Diluted earnings attributable to shareholders per share	0.53		0.63	0.59	0.61
Basic earnings attributable to shareholders per share	0.53		0.64	0.59	0.61