Operating Segments and Geographic Area Information - Net Sales (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 598,566	$ 642,418	$ 604,721	$ 599,843	$ 639,635	$ 591,196	$ 576,842	$ 586,597	$ 2,445,548	[1]	$ 2,394,270	[1]	$ 2,519,154	[1]
United States
Segment Reporting Information [Line Items]
Net sales									884,373		933,182		959,571
Foreign(a)
Segment Reporting Information [Line Items]
Net sales									$ 1,561,175	[1]	$ 1,461,088	[1]	$ 1,559,583	[1]

[1] No sales in a foreign country exceed 10% of total net sales. Also, net sales are attributed to countries based upon shipments to final destination.