Basis of Presentation and Significant Accounting Policies - (Tables)

12 Months Ended

Dec. 31, 2016

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:

	2016			2015			2014
Balance, beginning of year	$	2,380		$	2,471		$	2,744
Add Provision charged to expense	37			678			184
Recoveries	32			26			105
Less Charges against allowance	(504		)	(795		)	(562		)
Balance, end of year	$	1,945		$	2,380		$	2,471

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,
	2016		2015		2014
Non-cash investing and financing activities:
Capital expenditures financed by accounts payable	$	59	$	667	$	434
Capital lease obligations	—		—		873
Property, plant and equipment subject to build-to-suit lease	—		13,735		—
Cash paid during the year for:
Interest	31,404		32,934		32,278
Income taxes	2,434		1,980		1,800
Cash received during the year for:
Income tax refunds	500		1,798		2,284

Allowance for obsolete inventory [Table Text Block]

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

	2016			2015			2014
Balance, beginning of year	$	13,075		$	18,852		$	8,991
Add Provision charged to expense	5,857			28,903			11,959
Less Charges against allowance	(11,055		)	(34,680		)	(2,098		)
Balance, end of year	$	7,877		$	13,075		$	18,852

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,
	2016			2015			2014
Numerator:
Loss from continuing operations	$	(114,090	)	$	(212,781	)	$	(122,718	)
Income from discontinued operations, net of income taxes	6,108			3,016			3,330
Net loss	$	(107,982	)	$	(209,765	)	$	(119,388	)
Denominator:
Weighted average common shares outstanding	29,009			23,553			23,359
Effect of dilutive securities:
Outstanding common stock equivalents	—			—			—
Denominator for diluted loss per share	29,009			23,553			23,359
Basic earnings (loss) per common share:
Continuing operations	$	(3.93	)	$	(9.04	)	$	(5.25	)
Discontinued operations	0.21			0.13			0.14
Net basic loss per common share	$	(3.72	)	$	(8.91	)	$	(5.11	)
Diluted earnings (loss) per common share:
Continuing operations	$	(3.93	)	$	(9.04	)	$	(5.25	)
Discontinued operations	0.21			0.13			0.14
Net diluted loss per common share	$	(3.72	)	$	(8.91	)	$	(5.11	)
Excluded outstanding share-based awards having an anti-dilutive effect	2,640			1,071			388
Excluded "in the money" portion of convertible notes having an anti-dilutive effect	—			—			365
Excluded "in the money" portion of common stock warrants having an anti-dilutive effect	—			—			—