Financial Information Relating to Operations by Geographic Area (Detail) - 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
Net sales:
Net sales	$ 995,703	$ 1,266,930	$ 1,021,814	$ 805,407	$ 805,891	$ 1,139,643	$ 874,642	$ 792,738	$ 4,089,854	$ 3,612,914	$ 3,763,971
Long-lived assets:
Long-lived assets	1,489,872				1,156,952				1,489,872	1,156,952
United States
Net sales:
Net sales									3,110,595	2,905,157	3,014,068
Long-lived assets:
Long-lived assets	942,171				853,508				942,171	853,508
Europe
Net sales:
Net sales									747,043	551,071	576,688
Long-lived assets:
Long-lived assets	422,709				252,246				422,709	252,246
Other foreign
Net sales:
Net sales									232,216	156,686	173,215
Long-lived assets:
Long-lived assets	124,992				51,198				124,992	51,198
Total foreign operations
Net sales:
Net sales									979,259	707,757	$ 749,903
Long-lived assets:
Long-lived assets	$ 547,701				$ 303,444				$ 547,701	$ 303,444