Basis of Presentation and Significant Accounting Policies - (Tables)

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Allowance for doubtful accounts activity

Accounts receivable allowance for doubtful accounts and credit memos activity is presented in the table below:

	2015			2014			2013
Balance, beginning of year	$	3,375		$	3,463		$	3,529
Add Provision charged to expense	805			465			484
Recoveries	117			139			173
Less Charges against allowance	(857		)	(692		)	(723		)
Balance, end of year	$	3,440		$	3,375		$	3,463

Non-cash investing financing activities and supplemental cash flow information

Non-cash investing and financing activities and supplemental disclosures of consolidated cash flow information are as follows:

	Year ended December 31,
	2015		2014		2013
Non-cash investing and financing activities:
Capital expenditures financed by accounts payable	$	667	$	434	$	1,219
Capital lease obligations	—		873		21
Property, plant and equipment subject to build-to-suit lease	13,735		—		—
Cash paid during the year for:
Interest	32,934		32,278		33,266
Income taxes	1,980		1,800		2,417
Cash received during the year for:
Income tax refunds	1,798		2,284		3,015

Allowance for obsolete inventory [Table Text Block]

Excess and obsolete inventory allowance activity is presented in the table below:

	2015			2014			2013
Balance, beginning of year	$	19,513		$	9,579		$	10,013
Add Provision charged to expense	29,848			12,061			2,331
Less Charges against allowance	(35,584		)	(2,127		)	(2,765		)
Balance, end of year	$	13,777		$	19,513		$	9,579

Estimated useful lives of plant and equipment

The Company provides for depreciation of plant and equipment sufficient to amortize the cost over their estimated useful lives as follows:

Buildings and building improvements	5 – 40 years
Plant equipment	5 – 20 years
Furniture and fixtures	2 – 10 years
Vehicles and office equipment	3 – 10 years

Basic and diluted earnings per share calculations

The following table is a reconciliation of the basic and diluted loss per share calculations:

	Year ended December 31,
	2015			2014			2013
Numerator:
Net loss	$	(209,765	)	$	(119,388	)	$	(39,533	)
Denominator:
Weighted average common shares outstanding	23,553			23,359			23,214
Effect of dilutive securities:
Outstanding common stock equivalents	—			—			—
Denominator for diluted loss per share	23,553			23,359			23,214
Basic loss per share	$	(8.91	)	$	(5.11	)	$	(1.70	)
Diluted loss per share	$	(8.91	)	$	(5.11	)	$	(1.70	)
Excluded outstanding share-based awards having an anti-dilutive effect	1,071			388			717
Excluded "in the money" portion of Convertible Notes having an anti-dilutive effect	—			365			2,032

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	Year Ended December 31, 2014									Year Ended December 31, 2013
	As originally reported			Effect of change			As adjusted			As originally reported			Effect of change			As adjusted
Cost of materials (exclusive of depreciation and amortization)	$	746,443		$	3,965		$	750,408		$	779,208		$	8,918		$	788,126
Operating loss	(98,874		)	(3,965		)	(102,839		)	(15,672		)	(8,918		)	(24,590		)
Loss before income taxes and equity in earnings (losses) of joint venture	(143,745		)	(3,965		)	(147,710		)	(60,744		)	(8,918		)	(69,662		)
Income tax expense (benefit)	(1,353		)	(19,278		)	(20,631		)	(19,795		)	(3,347		)	(23,142		)
Loss before equity in earnings (losses) of joint venture	(142,392		)	15,313			(127,079		)	(40,949		)	(5,571		)	(46,520		)
Net loss	(134,701		)	15,313			(119,388		)	(33,962		)	(5,571		)	(39,533		)
Basic and diluted loss per common share	$	(5.77	)	$	0.66		$	(5.11	)	$	(1.46	)	$	(0.24	)	$	(1.70	)
Change in unrecognized pension and postretirement benefit costs	(21,445		)	8,449			(12,996		)	4,623			—			4,623
Other comprehensive (loss) income	(26,822		)	8,449			(18,373		)	2,328			—			2,328
Comprehensive loss	(161,523		)	23,762			(137,761		)	(31,634		)	(5,571		)	(37,205		)

The Consolidated Balance Sheet at December 31, 2014 was adjusted as follows:

	December 31, 2014
	As originally reported			Effect of change		As adjusted
Inventories	$	236,932		$	122,698	$	359,630
Deferred income tax liability	8,360			20,369		28,729
(Accumulated deficit) retained earnings	(29,424		)	93,880		64,456
Accumulated other comprehensive loss	(45,565		)	8,449		(37,116		)

The consolidated Statements of Cash Flows for the years ended December 31, 2014 and 2013 were adjusted as follows:

	Year Ended December 31, 2014									Year Ended December 31, 2013
	As originally reported			Effect of change			As adjusted			As originally reported			Effect of change			As adjusted
Net loss	$	(134,701	)	$	15,313		$	(119,388	)	$	(33,962	)	$	(5,571	)	$	(39,533	)
Deferred income taxes	184			(19,278		)	(19,094		)	(24,089		)	(3,347		)	(27,436		)
Increase (decrease) from changes in inventories	(26,941		)	3,965			(22,976		)	87,316			8,918			96,234