Guarantor Finanical Information Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	3 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	Dec. 31, 2010
Net (loss) income	$ (5,643)	$ 3,173	$ (2,978)	[1]	$ (4,300)	[1]	$ (11,963)	[2]	$ 3,803	$ 3,697	$ 2,703	$ (9,748)	$ (1,760)	$ (5,640)
Equity in (Losses) Earnings of Subsidiary												0	0	0
Adjustments to reconcile net (loss) income to cash provided by operating activities												15,099	(44,528)	40,002
Net cash from (used in) operating activities												5,351	(46,288)	34,362
Acquisition/Investment of businesses, net of cash acquired												(6,472)	(174,244)	0
Capital expenditures												(11,121)	(11,744)	(7,572)
Other investing activities, net												153	799	129
Net cash used in investing activities												(17,440)	(185,189)	(7,443)
Net borrowings (repayments) of debt													(25,750)	(11,396)
Proceeds from long-term debt, including new revolving credit facility												767,090	320,476	0
Repayments of long-term debt, including new revolving credit facility												(762,887)	(53,212)	(7,754)
Payment of debt issue costs												(1,503)	(16,633)	0
Net intercompany (repayments) borrowings												0	0	0
Other financing												209	657	785
Net cash from (used in) financing activities												2,909	225,538	(18,365)
Effect of exchange rate changes on cash and cash equivalents												263	(253)	(149)
Net (decrease) increase in cash and cash equivalents												(8,917)	(6,192)	8,405
Cash and cash equivalents—beginning of year					30,524						36,716	30,524	36,716	28,311
Cash and cash equivalents—end of year	21,607						30,524					21,607	30,524	36,716
Parent
Net (loss) income												(9,748)	(1,760)	(5,640)
Equity in (Losses) Earnings of Subsidiary												653	(7,040)	(344)
Adjustments to reconcile net (loss) income to cash provided by operating activities												10,688	10,232	12,721
Net cash from (used in) operating activities												1,593	1,432	6,737
Acquisition/Investment of businesses, net of cash acquired												(6,472)	(175,836)
Capital expenditures												(5,336)	(6,077)	(4,244)
Other investing activities, net												0	605	125
Net cash used in investing activities												(11,808)	(181,308)	(4,119)
Net borrowings (repayments) of debt													82	(13,720)
Proceeds from long-term debt, including new revolving credit facility												756,550	309,625
Repayments of long-term debt, including new revolving credit facility												(745,839)	(52,896)	(7,007)
Payment of debt issue costs												(1,503)	(16,380)
Net intercompany (repayments) borrowings												(7,431)	(57,307)	15,794
Other financing												236	657	785
Net cash from (used in) financing activities												2,013	183,781	(4,148)
Effect of exchange rate changes on cash and cash equivalents												0	0	0
Net (decrease) increase in cash and cash equivalents												(8,202)	3,905	(1,530)
Cash and cash equivalents—beginning of year					11,534						7,629	11,534	7,629	9,159
Cash and cash equivalents—end of year	3,332						11,534					3,332	11,534	7,629
Guarantors
Net (loss) income												(786)	834	(211)
Equity in (Losses) Earnings of Subsidiary												1,203	209	(110)
Adjustments to reconcile net (loss) income to cash provided by operating activities												12,951	15,095	29,562
Net cash from (used in) operating activities												13,368	16,138	29,241
Acquisition/Investment of businesses, net of cash acquired												0	0
Capital expenditures												(2,802)	(2,783)	(1,267)
Other investing activities, net												6	136	4
Net cash used in investing activities												(2,796)	(2,647)	(1,263)
Net borrowings (repayments) of debt													8	0
Proceeds from long-term debt, including new revolving credit facility												0	0
Repayments of long-term debt, including new revolving credit facility												(49)	(55)	(343)
Payment of debt issue costs												0	0
Net intercompany (repayments) borrowings												(9,428)	(13,930)	(27,350)
Other financing												0	0	0
Net cash from (used in) financing activities												(9,477)	(13,977)	(27,693)
Effect of exchange rate changes on cash and cash equivalents												0	0	0
Net (decrease) increase in cash and cash equivalents												1,095	(486)	285
Cash and cash equivalents—beginning of year					582						1,068	582	1,068	783
Cash and cash equivalents—end of year	1,677						582					1,677	582	1,068
Non-Guarantors
Net (loss) income												(801)	6,261	665
Equity in (Losses) Earnings of Subsidiary												0	0	0
Adjustments to reconcile net (loss) income to cash provided by operating activities												(8,809)	(70,119)	500
Net cash from (used in) operating activities												(9,610)	(63,858)	1,165
Acquisition/Investment of businesses, net of cash acquired												0	1,592
Capital expenditures												(2,983)	(2,884)	(2,061)
Other investing activities, net												147	58	0
Net cash used in investing activities												(2,836)	(1,234)	(2,061)
Net borrowings (repayments) of debt													(25,840)	2,324
Proceeds from long-term debt, including new revolving credit facility												10,540	10,851
Repayments of long-term debt, including new revolving credit facility												(16,999)	(261)	(404)
Payment of debt issue costs												0	(253)
Net intercompany (repayments) borrowings												16,859	71,237	8,775
Other financing												(27)	0	0
Net cash from (used in) financing activities												10,373	55,734	10,695
Effect of exchange rate changes on cash and cash equivalents												263	(253)	(149)
Net (decrease) increase in cash and cash equivalents												(1,810)	(9,611)	9,650
Cash and cash equivalents—beginning of year					18,408						28,019	18,408	28,019	18,369
Cash and cash equivalents—end of year	16,598						18,408					16,598	18,408	28,019
Eliminations
Net (loss) income												1,587	(7,095)	(454)
Equity in (Losses) Earnings of Subsidiary												(1,856)	6,831	454
Adjustments to reconcile net (loss) income to cash provided by operating activities												269	264	(2,781)
Net cash from (used in) operating activities												0	0	(2,781)
Acquisition/Investment of businesses, net of cash acquired												0
Capital expenditures												0	0	0
Other investing activities, net												0	0	0
Net cash used in investing activities												0	0	0
Net borrowings (repayments) of debt													0	0
Proceeds from long-term debt, including new revolving credit facility												0	0
Repayments of long-term debt, including new revolving credit facility												0	0	0
Payment of debt issue costs												0	0
Net intercompany (repayments) borrowings												0	0	2,781
Other financing												0	0	0
Net cash from (used in) financing activities												0	0	2,781
Effect of exchange rate changes on cash and cash equivalents												0	0	0
Net (decrease) increase in cash and cash equivalents												0	0	0
Cash and cash equivalents—beginning of year					0						0	0	0	0
Cash and cash equivalents—end of year	$ 0						$ 0					$ 0	$ 0	$ 0

[1] First and second quarter results include a mark-to-market adjustment related to the conversion option associated with the convertible debt in the amount of $11,340 and $4,257, respectively. Amounts were included in interest expense during the respective quarters.

[2] Fourth quarter results include fees incurred as a result of the acquisition of Tube Supply and the related debt refinancing in December 2011. The results of Tube Supply are included in the fourth quarter results for the two-week period ended December 31, 2011 and for the entire fiscal year ended December 31, 2012. In addition, a mark-to-market adjustment related to the conversion option associated with the convertible debt in the amount of $3,991 was included in interest expense during the fourth quarter.