CONSOLIDATED STATEMENTS OF INCOME UNAUDITED (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Revenue, Net	$ 1,610,584	$ 1,503,116	$ 3,181,622	$ 2,962,061
Cost of sales	1,256,354	1,143,601	2,468,938	2,252,842
Gross profit	354,230	359,515	712,684	709,219
Selling, general and administrative expenses	184,063	191,915	370,876	382,608
Provision for doubtful accounts	21,090	26,140	42,651	50,150
Settlement, litigation and other related charges	7,547	3,512	14,599	26,131
Other charges	11,284	31,268	21,560	35,274
Operating income	130,246	106,680	262,998	215,056
Interest expense, net of investment income	(29,980)	(29,624)	(59,421)	(59,086)
Income before income taxes	100,266	77,056	203,577	155,970
Income tax (benefit) expense	39,020	29,754	78,693	60,354
Income from continuing operations	61,246	47,302	124,884	95,616
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(39,275)	4,917	(39,139)	10,957
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	21,971	52,219	85,745	106,573
Earnings (loss) per common share - Basic:
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.63	$ 0.46	$ 1.28	$ 0.93
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$ (0.40)	$ 0.05	$ (0.40)	$ 0.11
Net income	$ 0.23	$ 0.51	$ 0.88	$ 1.03
Earnings (loss) per common share - Diluted:
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.58	$ 0.43	$ 1.17	$ 0.88
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	$ (0.37)	$ 0.04	$ (0.37)	$ 0.10
Diluted earnings per share	$ 0.21	$ 0.48	$ 0.80	$ 0.98
Dividends per common share	$ 0.20	$ 0.14	$ 0.40	$ 0.28
Weighted average number of common shares outstanding:
Weighted Average Number of Shares Outstanding, Basic	96,999	102,867	97,777	103,038
Diluted shares	106,054	109,931	106,906	108,736
Comprehensive income (loss)	$ 22,015	$ 52,145	$ 86,012	$ 106,475