Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Net revenue	$ 2,386,126	$ 2,270,547	$ 6,948,365	$ 6,753,008
Cost of goods sold	2,093,643	1,997,218	6,092,413	5,927,196
Gross margin	292,483	273,329	855,952	825,812
Selling, general and administrative expenses	231,377	211,344	682,825	641,613
Acquisition-related and exit and realignment charges	13,957	2,747	24,813	5,395
Depreciation and amortization	13,841	12,441	41,597	37,347
Other operating income, net	(2,069)	(2,418)	(12,046)	(5,693)
Operating earnings	35,377	49,215	118,763	147,150
Interest expense, net	4,304	3,389	10,893	9,835
Loss on early retirement of debt	14,890	0	14,890	0
Income before income taxes	16,183	45,826	92,980	137,315
Income tax provision	9,028	17,856	40,464	54,374
Net income	$ 7,155	$ 27,970	$ 52,516	$ 82,941
Net income per common share:
Basic (in usd per share)	$ 0.11	$ 0.44	$ 0.84	$ 1.31
Diluted (in usd per share)	$ 0.11	$ 0.44	$ 0.84	$ 1.31
Cash dividends in USD per common share	$ 0.25	$ 0.24	$ 0.75	$ 0.72