Quarterly Operating Results (Unaudited) - Quarterly Operating Results (unaudited) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Number of days in quarter	94 days	91 days	91 days	89 days	93 days	91 days	91 days	90 days	365 days	365 days
Revenues	$ 608,910us-gaap_SalesRevenueGoodsNet	$ 610,774us-gaap_SalesRevenueGoodsNet	$ 600,891us-gaap_SalesRevenueGoodsNet	$ 487,690us-gaap_SalesRevenueGoodsNet	$ 509,751us-gaap_SalesRevenueGoodsNet	$ 522,478us-gaap_SalesRevenueGoodsNet	$ 529,491us-gaap_SalesRevenueGoodsNet	$ 507,473us-gaap_SalesRevenueGoodsNet	$ 2,308,265us-gaap_SalesRevenueGoodsNet	$ 2,069,193us-gaap_SalesRevenueGoodsNet	$ 1,840,739us-gaap_SalesRevenueGoodsNet
Gross profit	217,615us-gaap_GrossProfit	221,732us-gaap_GrossProfit	204,385us-gaap_GrossProfit	175,717us-gaap_GrossProfit	175,039us-gaap_GrossProfit	182,841us-gaap_GrossProfit	179,196us-gaap_GrossProfit	167,353us-gaap_GrossProfit	819,449us-gaap_GrossProfit	704,429us-gaap_GrossProfit	566,597us-gaap_GrossProfit
Operating income	43,271us-gaap_OperatingIncomeLoss	58,011us-gaap_OperatingIncomeLoss	12,326us-gaap_OperatingIncomeLoss	49,511us-gaap_OperatingIncomeLoss	49,174us-gaap_OperatingIncomeLoss	53,935us-gaap_OperatingIncomeLoss	53,913us-gaap_OperatingIncomeLoss	44,240us-gaap_OperatingIncomeLoss	163,119us-gaap_OperatingIncomeLoss	201,262us-gaap_OperatingIncomeLoss	108,497us-gaap_OperatingIncomeLoss
Income from continuing operations	15,414	33,847	15	25,156	23,929	29,068	29,492	22,245	74,432	104,734	43,236
Income (loss) from discontinued operations, net of tax	579				(1,421)				579	(1,421)	16,774
Loss from disposal of discontinued operations, net of tax				(562)					(562)		134,480
Net income	$ 15,993us-gaap_NetIncomeLoss	$ 33,847us-gaap_NetIncomeLoss	$ 15us-gaap_NetIncomeLoss	$ 24,594us-gaap_NetIncomeLoss	$ 22,508us-gaap_NetIncomeLoss	$ 29,068us-gaap_NetIncomeLoss	$ 29,492us-gaap_NetIncomeLoss	$ 22,245us-gaap_NetIncomeLoss	$ 74,449us-gaap_NetIncomeLoss	$ 103,313us-gaap_NetIncomeLoss	$ 194,490us-gaap_NetIncomeLoss
Basic income (loss) per share
Continuing operations	$ 0.36	$ 0.78		$ 0.58	$ 0.55	$ 0.67	$ 0.67	$ 0.50	$ 1.72	$ 2.39	$ 0.96
Discontinued operations	$ 0.01				$ (0.03)				$ 0.01	$ (0.03)	$ 0.37
Disposal of discontinued operations				$ (0.01)					$ (0.01)		$ 2.98
Net income	$ 0.37us-gaap_EarningsPerShareBasic	$ 0.78us-gaap_EarningsPerShareBasic		$ 0.57us-gaap_EarningsPerShareBasic	$ 0.52us-gaap_EarningsPerShareBasic	$ 0.67us-gaap_EarningsPerShareBasic	$ 0.67us-gaap_EarningsPerShareBasic	$ 0.50us-gaap_EarningsPerShareBasic	$ 1.72us-gaap_EarningsPerShareBasic	$ 2.36us-gaap_EarningsPerShareBasic	$ 4.31us-gaap_EarningsPerShareBasic
Diluted income (loss) per share
Continuing operations	$ 0.35	$ 0.77		$ 0.57	$ 0.54	$ 0.65	$ 0.66	$ 0.49	$ 1.69	$ 2.34	$ 0.94
Discontinued operations	$ 0.01				$ (0.03)				$ 0.01	$ (0.03)	$ 0.36
Disposal of discontinued operations				$ (0.01)					$ (0.01)		$ 2.93
Net income	$ 0.36us-gaap_EarningsPerShareDiluted	$ 0.77us-gaap_EarningsPerShareDiluted		$ 0.56us-gaap_EarningsPerShareDiluted	$ 0.51us-gaap_EarningsPerShareDiluted	$ 0.65us-gaap_EarningsPerShareDiluted	$ 0.66us-gaap_EarningsPerShareDiluted	$ 0.49us-gaap_EarningsPerShareDiluted	$ 1.69us-gaap_EarningsPerShareDiluted	$ 2.31us-gaap_EarningsPerShareDiluted	$ 4.23us-gaap_EarningsPerShareDiluted

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