Segment and Geographic Area Information - Sales and Long-Lived Assets by Country of Origin (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net revenues	$ 1,226,583	$ 1,159,912	$ 1,134,671	$ 1,086,305	$ 1,010,800	$ 945,144	$ 931,558	$ 902,423	$ 4,607,471	$ 3,789,925	$ 3,582,395
Long-lived assets	175,444				167,016				175,444	167,016	155,482
Eliminations
Segment Reporting Information [Line Items]
Net revenues									(320,958)	(246,646)	(254,369)
Long-lived assets	0				0				0	0	0
Sales to unaffiliated customers
Segment Reporting Information [Line Items]
Net revenues									4,607,471	3,789,925	3,582,395
Sales to unaffiliated customers | Eliminations
Segment Reporting Information [Line Items]
Net revenues									0	0	0
Sales between geographic areas
Segment Reporting Information [Line Items]
Net revenues									0	0	0
Sales between geographic areas | Eliminations
Segment Reporting Information [Line Items]
Net revenues									(320,958)	(246,646)	(254,369)
United States
Segment Reporting Information [Line Items]
Net revenues									3,812,326	3,115,772	2,965,115
Long-lived assets	144,013				145,996				144,013	145,996	133,522
United States | Sales to unaffiliated customers
Segment Reporting Information [Line Items]
Net revenues									3,679,133	2,978,496	2,829,752
United States | Sales between geographic areas
Segment Reporting Information [Line Items]
Net revenues									133,193	137,276	135,363
Non-U.S.
Segment Reporting Information [Line Items]
Net revenues									1,116,103	920,799	871,649
Long-lived assets	$ 31,431				$ 21,020				31,431	21,020	21,960
Non-U.S. | Sales to unaffiliated customers
Segment Reporting Information [Line Items]
Net revenues									928,338	811,429	752,643
Non-U.S. | Sales between geographic areas
Segment Reporting Information [Line Items]
Net revenues									$ 187,765	$ 109,370	$ 119,006