Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating activities
Net (loss) income	$ (7,382)us-gaap_NetIncomeLoss	$ 4,153us-gaap_NetIncomeLoss	$ (18,035)us-gaap_NetIncomeLoss
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Stock-based compensation	2,548us-gaap_ShareBasedCompensation	1,736us-gaap_ShareBasedCompensation	1,949us-gaap_ShareBasedCompensation
Depreciation	32,752us-gaap_Depreciation	34,631us-gaap_Depreciation	38,533us-gaap_Depreciation
Amortization of other intangibles	1,540us-gaap_AmortizationOfIntangibleAssets	1,772us-gaap_AmortizationOfIntangibleAssets	2,305us-gaap_AmortizationOfIntangibleAssets
Deferred financing cost amortization	3,303us-gaap_AmortizationOfFinancingCosts	2,963us-gaap_AmortizationOfFinancingCosts	3,424us-gaap_AmortizationOfFinancingCosts
Unrealized foreign exchange (gain) loss on revaluation of debt	(259)	1,706	582
Deferred taxes	(4,857)us-gaap_DeferredIncomeTaxExpenseBenefit	(5,686)us-gaap_DeferredIncomeTaxExpenseBenefit	(8,249)us-gaap_DeferredIncomeTaxExpenseBenefit
Asset impairments	136us-gaap_AssetImpairmentCharges	1,354us-gaap_AssetImpairmentCharges	3,674us-gaap_AssetImpairmentCharges
(Gain) loss on disposition of property and equipment	(1,036)us-gaap_GainLossOnDispositionOfAssets	202us-gaap_GainLossOnDispositionOfAssets	(576)us-gaap_GainLossOnDispositionOfAssets
Loss (gain) on extinguishment of debt	0	3,123	(243)
Provision for doubtful accounts	274us-gaap_ProvisionForDoubtfulAccounts	425us-gaap_ProvisionForDoubtfulAccounts	954us-gaap_ProvisionForDoubtfulAccounts
Change in assets and liabilities which (used) provided cash:
Accounts receivable	(3,461)	(6,283)	5,595
Inventories	(9,009)us-gaap_IncreaseDecreaseInInventories	(8,777)us-gaap_IncreaseDecreaseInInventories	5,219us-gaap_IncreaseDecreaseInInventories
Prepaid expenses	(837)	979	(3,423)
Other current assets	(3,278)	(1,444)	584
Accounts payable and accrued expenses	597	6,799	9,336
Deferred and other long-term liabilities and assets	(4,139)	(1,539)	(2,307)
Net cash provided by operating activities	6,892	36,114	39,322
Investing activities
Capital expenditures	(45,218)us-gaap_PaymentsForCapitalImprovements	(44,145)us-gaap_PaymentsForCapitalImprovements	(21,705)us-gaap_PaymentsForCapitalImprovements
Proceeds from disposals of property and equipment	3,430	2,276	1,088
Net cash used in investing activities	(41,788)	(41,869)	(20,617)
Financing activities
Proceeds from borrowings (maturities longer than 90 days)	102,159	199,321	7,365
Principal payments on debt	(79,121)	(199,349)	(33,055)
Principal payments on capital leases	(821)	0	0
Payment of deferred financing fees	(1,524)us-gaap_PaymentsOfFinancingCosts	(3,246)us-gaap_PaymentsOfFinancingCosts	(1,782)us-gaap_PaymentsOfFinancingCosts
Net cash provided by (used in) financing activities	20,693	(3,274)	(27,472)
Effect of exchange rate changes on cash flows	(1,996)	(32)	(22)
Net decrease in cash	(16,199)	(9,061)	(8,789)
Cash and cash equivalents at beginning of year	25,716	34,777	43,566
Cash and cash equivalents at end of year	9,517	25,716	34,777
Cash paid for interest	33,519us-gaap_InterestPaidNet	33,691us-gaap_InterestPaidNet	34,924us-gaap_InterestPaidNet
Cash paid for income taxes	33,213us-gaap_IncomeTaxesPaidNet	7,840us-gaap_IncomeTaxesPaidNet	6,943us-gaap_IncomeTaxesPaidNet
Supplemental schedule of noncash activities:
Non-cash accrual for new facility	$ 5,695	$ 0	$ 0

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-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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- Definition

The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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- Definition

Proceeds from Other Investing Activities and Property, Plant and Equipment

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- Definition

Repayments of Long-term Debt and Short-term Debt Maturing in Three Months or Less

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No definition available.

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