Financial Information by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	$ 2,305,858	$ 2,236,077	$ 4,562,239	$ 4,482,461
Operating earnings (loss):	37,101	50,050	83,387	97,934
Acquisition-related and exit and realignment charges	(7,593)	(638)	(10,855)	(2,648)
Depreciation and amortization	13,892	12,276	27,756	24,905
Capital expenditures	24,595	16,270	38,823	31,047
Domestic
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	2,187,535	2,143,691	4,336,451	4,298,406
Operating earnings (loss):	48,317	51,245	101,053	104,151
Depreciation and amortization	8,812	8,887	17,787	17,969
Capital expenditures	18,858	12,872	29,033	24,474
International
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	118,323	92,386	225,788	184,055
Operating earnings (loss):	(3,623)	(557)	(6,811)	(3,569)
Depreciation and amortization	5,080	3,389	9,969	6,936
Capital expenditures	$ 5,737	$ 3,398	$ 9,790	$ 6,573