Accumulated Other Comprehensive Income (Loss) - Amounts Reclassified Out of AOCI into Income Statement (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense, net	$ (3,992)	$ (2,734)	$ (11,199)	$ (8,703)
Warehousing, marketing and administrative expenses	(146,560)	(136,265)	(437,595)	(442,558)
Tax provision	(22,307)	(24,161)	(55,420)	(53,816)
Net income	38,169	40,501	93,357	89,045
Amount Reclassified From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	817		2,001
Amount Reclassified From AOCI [Member] | Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax provision	(128)		(142)
Net income	211		234
Amount Reclassified From AOCI [Member] | Defined Benefit Pension Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Warehousing, marketing and administrative expenses	992		2,892
Tax provision	(386)		(1,125)
Net income	606		1,767
Amount Reclassified From AOCI [Member] | Interest Rate Swap [Member] | Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense, net	$ 339		$ 376