Quarterly Data (unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended		2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Feb. 26, 2010 Predecessor [Member]	Dec. 31, 2010 Successor [Member]	Dec. 31, 2012 Successor [Member]	Dec. 31, 2011 Successor [Member]
Schedule Of Quarterly Financial Information [Line Items]
Net sales	$ 176,259	$ 215,211	$ 268,783	$ 269,518	$ 242,499	$ 240,829	$ 241,872	$ 210,895	$ 929,771	$ 936,095	$ 91,647	$ 582,307	$ 929,771	$ 936,095
Cost of goods sold	180,425	211,081	243,958	247,418	220,660	221,591	219,428	193,605	882,882	855,284	89,397	541,859	882,882	855,284
Gross profit	(4,166)	4,130	24,825	22,100	21,839	19,238	22,444	17,290	46,889	80,811	2,250	40,448	46,889	80,811
Operating expenses	46,274	13,809	15,233	14,864	12,319	14,747	13,984	15,849	190,180	56,899	6,479	54,147	56,448	56,899
Income (loss) from operations	(150,440)	(9,679)	9,592	7,236	9,520	4,491	8,460	1,441	(143,291)	23,912	(4,229)	(13,699)	(143,291)	23,912
Interest expense, net	(8,614)	(8,921)	(8,658)	(8,745)	(8,533)	(8,824)	(8,400)	(8,340)	(34,938)	(34,097)
Other income (loss), net	(1,400)	815	(436)	157	391	809	233	2,163	(864)	3,596	566	2,575	(864)	3,596
Income tax provision (benefit)	(4,487)	(106)	1,339	1,597	(2,663)	10,032	(107)	499	1,657	7,761	(1,931)	(2,207)	(1,657)	7,761
Income (loss) from continuing operations	(155,967)	(17,679)	(841)	(2,949)	4,041	(13,556)	400	(5,235)	(177,436)	(14,350)	50,083	(133,484)	(177,436)	(14,350)
Discontinued operations, net of tax	(571)	0	0	0	32	(3,664)	877	74	(571)	(2,681)	719	6,952	(571)	(2,681)
Net income (loss)	$ (156,538)	$ (17,679)	$ (841)	$ (2,949)	$ 4,073	$ (17,220)	$ 1,277	$ (5,161)	$ (178,007)	$ (17,031)	$ 50,802	$ (126,532)	$ (178,007)	$ (17,031)
Basic income (loss) per share [Abstract]
Continuing operations (in dollars per share)	$ (3.3)	$ (0.37)	$ (0.02)	$ (0.06)	$ 0.09	$ (0.28)	$ 0.01	$ (0.11)	$ (3.75)	$ (0.3)	$ 1.05	$ (8.52)	$ (3.75)	$ (0.3)
Discontinued operations (in dollars per share)	$ (0.01)	$ 0	$ 0	$ 0	$ 0.00	$ (0.08)	$ 0.02	$ 0.00	$ (0.01)	$ (0.06)	$ 0.02	$ 0.45	$ (0.01)	$ (0.06)
Total (in dollars per share)	$ (3.31)	$ (0.37)	$ (0.02)	$ (0.06)	$ 0.09	$ (0.36)	$ 0.03	$ (0.11)	$ (3.76)	$ (0.36)	$ 1.07	$ (8.07)	$ (3.76)	$ (0.36)
Diluted income (loss) per share [Abstract]
Continuing operations (in dollars per share)	$ (3.3)	$ (0.37)	$ (0.02)	$ (0.06)	$ 0.09	$ (0.28)	$ 0.01	$ (0.11)	$ (3.75)	$ (0.3)	$ 1.05	$ (8.52)	$ (3.75)	$ (0.3)
Discontinued operations (in dollars per share)	$ (0.01)	$ 0	$ 0	$ 0	$ 0.00	$ (0.08)	$ 0.02	$ 0.00	$ (0.01)	$ (0.06)	$ 0.02	$ 0.45	$ (0.01)	$ (0.06)
Total (in dollars per share)	$ (3.31)	$ (0.37)	$ (0.02)	$ (0.06)	$ 0.09	$ (0.36)	$ 0.03	$ (0.11)	$ (3.76)	$ (0.36)	$ 1.07	$ (8.07)	$ (3.76)	$ (0.36)