Guarantor Information (Income and Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Successor
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	$ 0		$ 0
Sales - third party	115,365		210,941
Net sales	115,365		210,941
Cost of sales	120,266		217,696
Lower of cost or market inventory adjustment	3,504		14,625
Gross profit	(8,405)		(21,380)
Research and development	786		1,438
Selling and administrative expenses	13,487		27,157
Impairments	0		0
Rationalizations	(64)		58
Operating loss	(22,614)		(50,033)
Other (income) expense, net	(1,198)		(960)
Interest expense - affiliate	0		0
Interest expense - third party	6,436		12,896
Interest income - affiliate	0		0
Interest income	0		(12)
Income (Loss) from continuing operations before provision for income taxes	(27,852)		(61,957)
(Benefit) provision for income taxes	(5,591)		(5,886)
Equity in loss from continuing operations of subsidiary	0		0
Net (loss) income from continuing operations	(22,261)		(56,071)
Loss from discontinued operations, net of tax	(106,138)		(108,702)
Equity in loss from discontinued operations of subsidiary	0		0
Net (loss) income from discontinued operations	(106,138)		(108,702)
Net loss	(128,399)		(164,773)
Statements of Comprehensive Income
Net income	(128,399)		(164,773)
Other comprehensive income (loss), net of tax	(936)		11,701
Comprehensive (loss) income	(129,335)		(153,072)
Successor | Parent
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	0		0
Sales - third party	0		0
Net sales	0		0
Cost of sales	0		0
Lower of cost or market inventory adjustment	0		0
Gross profit	0		0
Research and development	0		0
Selling and administrative expenses	0		0
Impairments	0
Rationalizations	0		0
Operating loss	0		0
Other (income) expense, net	0		6
Interest expense - affiliate	236		434
Interest expense - third party	6,353		12,697
Interest income - affiliate	0		0
Interest income	0		0
Income (Loss) from continuing operations before provision for income taxes	(6,589)		(13,137)
(Benefit) provision for income taxes	0		0
Equity in loss from continuing operations of subsidiary	(15,672)		(42,934)
Net (loss) income from continuing operations	(22,261)		(56,071)
Loss from discontinued operations, net of tax	0		0
Equity in loss from discontinued operations of subsidiary	(106,138)		(108,702)
Net (loss) income from discontinued operations	(106,138)		(108,702)
Net loss	(128,399)		(164,773)
Statements of Comprehensive Income
Net income	(128,399)		(164,773)
Other comprehensive income (loss), net of tax	(936)		11,701
Comprehensive (loss) income	(129,335)		(153,072)
Successor | Guarantors
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	38,238		79,137
Sales - third party	21,824		42,644
Net sales	60,062		121,781
Cost of sales	43,760		105,414
Lower of cost or market inventory adjustment	1,761		3,782
Gross profit	14,541		12,585
Research and development	786		1,438
Selling and administrative expenses	3,688		9,674
Impairments	0
Rationalizations	28		115
Operating loss	10,039		1,358
Other (income) expense, net	472		742
Interest expense - affiliate	0		0
Interest expense - third party	13		54
Interest income - affiliate	(236)		(434)
Interest income	0		0
Income (Loss) from continuing operations before provision for income taxes	9,790		996
(Benefit) provision for income taxes	238		255
Equity in loss from continuing operations of subsidiary	(25,224)		(43,675)
Net (loss) income from continuing operations	(15,672)		(42,934)
Loss from discontinued operations, net of tax	(103,752)		(105,330)
Equity in loss from discontinued operations of subsidiary	(2,386)		(3,372)
Net (loss) income from discontinued operations	(106,138)		(108,702)
Net loss	(121,810)		(151,636)
Statements of Comprehensive Income
Net income	(121,810)		(151,636)
Other comprehensive income (loss), net of tax	(936)		11,701
Comprehensive (loss) income	(122,746)		(139,935)
Successor | Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	16,081		35,724
Sales - third party	93,541		168,297
Net sales	109,622		204,021
Cost of sales	130,825		227,143
Lower of cost or market inventory adjustment	1,743		10,843
Gross profit	(22,946)		(33,965)
Research and development	0		0
Selling and administrative expenses	9,799		17,483
Impairments	0
Rationalizations	(92)		(57)
Operating loss	(32,653)		(51,391)
Other (income) expense, net	(1,670)		(1,708)
Interest expense - affiliate	0		0
Interest expense - third party	70		145
Interest income - affiliate	0		0
Interest income	0		(12)
Income (Loss) from continuing operations before provision for income taxes	(31,053)		(49,816)
(Benefit) provision for income taxes	(5,829)		(6,141)
Equity in loss from continuing operations of subsidiary	0		0
Net (loss) income from continuing operations	(25,224)		(43,675)
Loss from discontinued operations, net of tax	(2,386)		(3,372)
Net (loss) income from discontinued operations	(2,386)		(3,372)
Net loss	(27,610)		(47,047)
Statements of Comprehensive Income
Net income	(27,610)		(47,047)
Other comprehensive income (loss), net of tax	(936)		11,701
Comprehensive (loss) income	(28,546)		(35,346)
Predecessor
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		$ 0		$ 0
Sales - third party		125,809		288,303
Net sales		125,809		288,303
Cost of sales		111,591		257,593
Lower of cost or market inventory adjustment		0		0
Gross profit		14,218		30,710
Research and development		1,150		2,667
Selling and administrative expenses		19,709		39,798
Impairments		0		35,381
Rationalizations		(26)		53
Operating loss		(6,615)		(47,189)
Other (income) expense, net		733		1,151
Interest expense - affiliate		0		0
Interest expense - third party		8,796		17,421
Interest income - affiliate		0		0
Interest income		(268)		(341)
Income (Loss) from continuing operations before provision for income taxes		(15,876)		(65,420)
(Benefit) provision for income taxes		1,239		1,219
Equity in loss from continuing operations of subsidiary		0		0
Net (loss) income from continuing operations		(17,115)		(66,639)
Loss from discontinued operations, net of tax		(5,702)		(11,786)
Equity in loss from discontinued operations of subsidiary		0		0
Net (loss) income from discontinued operations		(5,702)		(11,786)
Net loss		(22,817)		(78,425)
Statements of Comprehensive Income
Net income		(22,817)		(78,425)
Other comprehensive income (loss), net of tax		7,557		(21,209)
Comprehensive (loss) income		(15,260)		(99,634)
Predecessor | Parent
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		0		0
Sales - third party		0		0
Net sales		0		0
Cost of sales		0		0
Gross profit		0		0
Research and development		0		0
Selling and administrative expenses		0		0
Impairments				0
Rationalizations		0		0
Operating loss		0		0
Other (income) expense, net		0		0
Interest expense - affiliate		0		0
Interest expense - third party		8,220		16,382
Interest income - affiliate		(145)		(305)
Interest income		0		0
Income (Loss) from continuing operations before provision for income taxes		(8,075)		(16,077)
(Benefit) provision for income taxes		0		0
Equity in loss from continuing operations of subsidiary		(9,040)		(50,562)
Net (loss) income from continuing operations		(17,115)		(66,639)
Loss from discontinued operations, net of tax		0		0
Equity in loss from discontinued operations of subsidiary		(5,702)		(11,786)
Net (loss) income from discontinued operations		(5,702)		(11,786)
Net loss		(22,817)		(78,425)
Statements of Comprehensive Income
Net income		(22,817)		(78,425)
Other comprehensive income (loss), net of tax		7,557		(21,209)
Comprehensive (loss) income		(15,260)		(99,634)
Predecessor | Guarantors
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		51,654		97,324
Sales - third party		30,045		64,538
Net sales		81,699		161,862
Cost of sales		69,923		148,325
Gross profit		11,776		13,537
Research and development		1,150		2,667
Selling and administrative expenses		8,301		18,094
Impairments				35,381
Rationalizations		(29)		(29)
Operating loss		2,354		(42,576)
Other (income) expense, net		457		791
Interest expense - affiliate		145		305
Interest expense - third party		459		828
Interest income - affiliate		0		0
Interest income		0		0
Income (Loss) from continuing operations before provision for income taxes		1,293		(44,500)
(Benefit) provision for income taxes		(4,043)		(3,692)
Equity in loss from continuing operations of subsidiary		(14,376)		(9,754)
Net (loss) income from continuing operations		(9,040)		(50,562)
Loss from discontinued operations, net of tax		(4,340)		(5,644)
Equity in loss from discontinued operations of subsidiary		(1,362)		(6,142)
Net (loss) income from discontinued operations		(5,702)		(11,786)
Net loss		(14,742)		(62,348)
Statements of Comprehensive Income
Net income		(14,742)		(62,348)
Other comprehensive income (loss), net of tax		7,557		(21,209)
Comprehensive (loss) income		(7,185)		(83,557)
Predecessor | Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		15,503		42,278
Sales - third party		95,764		223,765
Net sales		111,267		266,043
Cost of sales		108,825		248,870
Gross profit		2,442		17,173
Research and development		0		0
Selling and administrative expenses		11,408		21,704
Impairments				0
Rationalizations		3		82
Operating loss		(8,969)		(4,613)
Other (income) expense, net		276		360
Interest expense - affiliate		0		0
Interest expense - third party		117		211
Interest income - affiliate		0		0
Interest income		(268)		(341)
Income (Loss) from continuing operations before provision for income taxes		(9,094)		(4,843)
(Benefit) provision for income taxes		5,282		4,911
Equity in loss from continuing operations of subsidiary		0		0
Net (loss) income from continuing operations		(14,376)		(9,754)
Loss from discontinued operations, net of tax		(1,362)		(6,142)
Equity in loss from discontinued operations of subsidiary		0
Net (loss) income from discontinued operations		(1,362)		(6,142)
Net loss		(15,738)		(15,896)
Statements of Comprehensive Income
Net income		(15,738)		(15,896)
Other comprehensive income (loss), net of tax		6,623		(22,207)
Comprehensive (loss) income		(9,115)		(38,103)
Consolidating Entries and Eliminations | Successor
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	(54,319)		(114,861)
Sales - third party	0		0
Net sales	(54,319)		(114,861)
Cost of sales	(54,319)		(114,861)
Lower of cost or market inventory adjustment	0		0
Gross profit	0		0
Research and development	0		0
Selling and administrative expenses	0		0
Impairments	0
Rationalizations	0		0
Operating loss	0		0
Other (income) expense, net	0		0
Interest expense - affiliate	(236)		(434)
Interest expense - third party	0		0
Interest income - affiliate	236		434
Interest income	0		0
Income (Loss) from continuing operations before provision for income taxes	0		0
(Benefit) provision for income taxes	0		0
Equity in loss from continuing operations of subsidiary	40,896		86,609
Net (loss) income from continuing operations	40,896		86,609
Loss from discontinued operations, net of tax	0		0
Equity in loss from discontinued operations of subsidiary	108,524		112,074
Net (loss) income from discontinued operations	108,524		112,074
Net loss	149,420		198,683
Statements of Comprehensive Income
Net income	149,420		198,683
Other comprehensive income (loss), net of tax	1,872		(23,402)
Comprehensive (loss) income	$ 151,292		$ 175,281
Consolidating Entries and Eliminations | Predecessor
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates		(67,157)		(139,602)
Sales - third party		0		0
Net sales		(67,157)		(139,602)
Cost of sales		(67,157)		(139,602)
Gross profit		0		0
Research and development		0		0
Selling and administrative expenses		0		0
Impairments				0
Rationalizations		0		0
Operating loss		0		0
Other (income) expense, net		0		0
Interest expense - affiliate		(145)		(305)
Interest expense - third party		0		0
Interest income - affiliate		145		305
Interest income		0		0
Income (Loss) from continuing operations before provision for income taxes		0		0
(Benefit) provision for income taxes		0		0
Equity in loss from continuing operations of subsidiary		23,416		60,316
Net (loss) income from continuing operations		23,416		60,316
Loss from discontinued operations, net of tax		0		0
Equity in loss from discontinued operations of subsidiary		7,064		17,928
Net (loss) income from discontinued operations		7,064		17,928
Net loss		30,480		78,244
Statements of Comprehensive Income
Net income		30,480		78,244
Other comprehensive income (loss), net of tax		(14,180)		43,416
Comprehensive (loss) income		$ 16,300		$ 121,660