Supplemental Guarantor Information Consolidating Condensed Statements of Operations (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 The Company (Parent) [Member]	Sep. 30, 2011 The Company (Parent) [Member]	Sep. 30, 2012 The Company (Parent) [Member]	Sep. 30, 2011 The Company (Parent) [Member]	Sep. 30, 2012 Combined Guarantor Subsidiaries [Member]	Sep. 30, 2011 Combined Guarantor Subsidiaries [Member]	Sep. 30, 2012 Combined Guarantor Subsidiaries [Member]	Sep. 30, 2011 Combined Guarantor Subsidiaries [Member]	Sep. 30, 2012 Combined Non-Guarantor Subsidiaries [Member]	Sep. 30, 2011 Combined Non-Guarantor Subsidiaries [Member]	Sep. 30, 2012 Combined Non-Guarantor Subsidiaries [Member]	Sep. 30, 2011 Combined Non-Guarantor Subsidiaries [Member]	Sep. 30, 2012 Eliminations [Member]	Sep. 30, 2011 Eliminations [Member]	Sep. 30, 2012 Eliminations [Member]	Sep. 30, 2011 Eliminations [Member]	Sep. 30, 2012 Convertible Senior Subordinated Debentures February 2027 [Member] Convertible Subordinated Debt [Member]	Sep. 30, 2012 Convertible Senior Subordinated Debentures February 2027 [Member] Convertible Subordinated Debt [Member]	Feb. 17, 2007 Convertible Senior Subordinated Debentures February 2027 [Member] Convertible Subordinated Debt [Member]
Condensed Financial Statements, Captions [Line Items]
Interest Rate																						4.125%
Debt Instrument, Face Amount																							$ 135,000,000
Net sales	452,981,000	456,519,000	1,341,470,000	1,351,429,000	90,406,000	96,992,000	275,742,000	286,969,000	207,802,000	191,595,000	619,081,000	576,799,000	183,801,000	193,007,000	540,535,000	562,331,000	(29,028,000)	(25,075,000)	(93,888,000)	(74,670,000)
Cost of products sold	331,327,000	325,442,000	974,380,000	962,428,000	70,600,000	70,548,000	211,115,000	208,162,000	162,906,000	149,783,000	484,865,000	449,838,000	126,852,000	130,001,000	371,855,000	378,691,000	(29,031,000)	(24,890,000)	(93,455,000)	(74,263,000)
Gross Profit	121,654,000	131,077,000	367,090,000	389,001,000	19,806,000	26,444,000		78,807,000	44,896,000	41,812,000		126,961,000	56,949,000	63,006,000		183,640,000	3,000	(185,000)		(407,000)
Selling, general and administrative expense	111,319,000	104,135,000	330,589,000	322,329,000	33,712,000	30,314,000	99,736,000	99,464,000	28,394,000	14,069,000	88,286,000	44,186,000	45,492,000	47,145,000	138,207,000	141,955,000	3,721,000	12,607,000	4,360,000	36,724,000
Loss on debt extinguishment including debt finance charges and associated fees	0	7,462,000	312,000	24,198,000		7,462,000	312,000	24,198,000		0	0	0		0	0	0		0	0	0	312,000
Interest Expense, Net	1,221,000	1,019,000		5,317,000	(1,024,000)	(180,000)	(3,041,000)	1,532,000	1,474,000	363,000	4,264,000	1,144,000	771,000	836,000	2,374,000	2,641,000	0	0	0	0
Income (loss) from equity investee	0	0		0	17,302,000	24,452,000	45,175,000	78,902,000	(4,264,000)	8,210,000	1,954,000	26,271,000	228,000	8,000	391,000	1,065,000	(13,266,000)	(32,670,000)	(47,520,000)	(106,238,000)
Earnings (loss) before Income Taxes	7,939,000	17,150,000	28,870,000	35,415,000	4,086,000	13,300,000		32,515,000	10,746,000	35,125,000		107,437,000	10,091,000	14,187,000		38,832,000	(16,984,000)	(45,462,000)		(143,369,000)
Income taxes (benefit)	5,075,000	4,350,000	19,750,000	4,500,000	1,222,000	500,000	1,590,000	1,600,000	(398,000)	100,000	100,000	300,000	4,251,000	3,750,000	18,060,000	2,600,000	0	0	0	0
Net earnings (loss)	2,864,000	12,800,000	9,120,000	30,915,000	2,864,000	12,800,000		30,915,000	11,144,000	35,025,000		107,137,000	5,840,000	10,437,000		36,232,000	(16,984,000)	(45,462,000)		(143,369,000)
Other Comprehensive Income (Loss), Net of Tax	14,518,000	(12,632,000)	(24,673,000)	46,642,000	14,518,000	(12,632,000)	(24,673,000)	46,642,000	3,164,000	(7,338,000)	3,179,000	(4,382,000)	11,412,000	(6,703,000)	(27,878,000)	51,268,000	(14,576,000)	14,041,000	24,699,000	(46,886,000)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	17,382,000	168,000	(15,553,000)	77,557,000	17,382,000	168,000		77,557,000	14,308,000	27,687,000		102,755,000	17,252,000	3,734,000		87,500,000	(31,560,000)	(31,421,000)		(190,255,000)
Restructuring Charges	$ 1,175,000	$ 1,311,000	$ 3,722,000	$ 1,742,000	$ 334,000	$ 0	$ 2,085,000	$ 0	$ 18,000	$ 465,000	$ 19,000	$ 465,000	$ 823,000	$ 846,000	$ 1,618,000	$ 1,277,000	$ 0	$ 0	$ 0	$ 0