CONSOLIDATED STATEMENTS OF INCOME UNAUDITED (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]
Revenue, Net	$ 1,571,038	$ 1,458,945
Cost of sales	1,212,584	1,109,241
Gross profit	358,454	349,704
Selling, general and administrative expenses	186,813	190,693
Provision for doubtful accounts	21,561	24,010
Settlement, litigation and other related charges	7,052	22,619
Other charges	10,276	4,006
Operating income	132,752	108,376
Interest expense, net of investment income	(29,441)	(29,462)
Income before income taxes	103,311	78,914
Income tax (benefit) expense	39,673	30,600
Income from continuing operations	63,638	48,314
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	136	6,040
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	63,774	54,354
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.65	$ 0.47
Earnings (loss) per common share - Basic:
Net income	$ 0.65	$ 0.53
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$ 0.00	$ 0.06
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.59	$ 0.45
Earnings (loss) per common share - Diluted:
Diluted earnings per share (per share)	$ 0.59	$ 0.51
Dividends per common share	$ 0.20	$ 0.14
Weighted average number of common shares outstanding:
Weighted Average Number of Shares Outstanding, Basic	98,566	103,210
Diluted shares (in shares)	107,767	107,466
Comprehensive income (loss)	$ 63,997	$ 54,330