Guarantor Information (Condensed Consolidating Statements of Operations and Comprehensive Income) (Details) - USD ($)	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Aug. 14, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net sales			$ 437,963,000	$ 533,040,000	$ 825,145,000
Net income (loss)			(235,843,000)
Statements of Comprehensive Income
Net income (loss)			(235,843,000)
Predecessor [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	$ 0	$ 0			0
Sales - third party	193,133,000	339,907,000			825,145,000
Net sales	193,133,000	339,907,000			825,145,000
Cost of sales	180,845,000	305,001,000			757,156,000
Additions to lower of cost or market reserve		0			0
Gross profit (loss)	12,288,000	34,906,000			67,989,000
Research and development	1,083,000	3,377,000			9,738,000
Selling and administrative expenses	23,485,000	64,383,000			94,629,000
Impairment of long-lived assets and goodwill		35,381,000			75,650,000
Rationalizations	283,000	14,000			7,946,000
Operating loss	(12,563,000)	(68,249,000)			(119,974,000)
Other (income) expense, net	(813,000)	1,421,000			2,920,000
Interest expense - affiliate	0	0			0
Interest expense - third party	9,999,000	26,211,000			35,736,000
Interest income - affiliate	0	0			0
Interest income	(6,000)	(363,000)			(320,000)
Loss from continuing operations before provision for income taxes	(21,743,000)	(95,518,000)	116,421,000		(158,310,000)
(Benefit) provision for income taxes	6,882,000	6,452,000	(7,552,000)		(5,790,000)
Equity in loss from continuing operations of subsidiary	0	0			0
Net loss from continuing operations		(101,970,000)			(152,520,000)
Loss from discontinued operations, net of tax					(132,856,000)
Equity in loss from discontinued operations of subsidiary					0
Loss from discontinued operations, net of tax		(18,679,000)			(132,856,000)
Net income (loss)	(33,551,000)	(120,649,000)	235,843,000		(285,376,000)
Statements of Comprehensive Income
Net income (loss)	(33,551,000)	(120,649,000)	235,843,000		(285,376,000)
Other comprehensive income (loss)	(10,257,000)	(26,674,000)			(43,900,000)
Comprehensive loss	(43,808,000)	(147,323,000)			(329,276,000)
Predecessor [Member] | Consolidating Entries and Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	(80,886,000)	(170,049,000)			(382,946,000)
Sales - third party	0	0			0
Net sales	(80,886,000)	(170,049,000)			(382,946,000)
Cost of sales	(80,886,000)	(170,049,000)			(382,946,000)
Gross profit (loss)	0	0			0
Research and development	0	0			0
Selling and administrative expenses	0	0			0
Impairment of long-lived assets and goodwill		0			0
Rationalizations	0	0			0
Operating loss	0	0			0
Other (income) expense, net	0	0			0
Interest expense - affiliate	(226,000)	(375,000)			(806,000)
Interest expense - third party	0	0			0
Interest income - affiliate	226,000	375,000			806,000
Interest income	0	0			0
Loss from continuing operations before provision for income taxes	0	0	0		0
(Benefit) provision for income taxes	0	0	0		0
Equity in loss from continuing operations of subsidiary	30,715,000	85,653,000			140,113,000
Net loss from continuing operations					140,113,000
Loss from discontinued operations, net of tax					0
Equity in loss from discontinued operations of subsidiary					139,495,000
Loss from discontinued operations, net of tax					139,495,000
Net income (loss)	36,413,000	109,581,000	(276,823,000)		279,608,000
Statements of Comprehensive Income
Net income (loss)	36,413,000	109,581,000	(276,823,000)		279,608,000
Other comprehensive income (loss)	20,514,000	54,715,000			72,550,000
Comprehensive loss	56,927,000	164,296,000			352,158,000
Predecessor [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	0	0			0
Sales - third party	0	0			0
Net sales	0	0			0
Cost of sales	0	0			0
Gross profit (loss)	0	0			0
Research and development	0	0			0
Selling and administrative expenses	0	6,750,000			0
Impairment of long-lived assets and goodwill		0			0
Rationalizations	0	0			0
Operating loss	0	(6,750,000)			0
Other (income) expense, net	0	0			0
Interest expense - affiliate	226,000	3,000			0
Interest expense - third party	9,552,000	24,366,000			32,118,000
Interest income - affiliate	0	(372,000)			(806,000)
Interest income	0	0			0
Loss from continuing operations before provision for income taxes	(9,778,000)	(30,747,000)	26,420,000		(31,312,000)
(Benefit) provision for income taxes	0	0	0		15,443,000
Equity in loss from continuing operations of subsidiary	(18,847,000)	(71,223,000)			(105,765,000)
Net loss from continuing operations					(152,520,000)
Loss from discontinued operations, net of tax					0
Equity in loss from discontinued operations of subsidiary					(132,856,000)
Loss from discontinued operations, net of tax					(132,856,000)
Net income (loss)	(33,551,000)	(120,649,000)	235,843,000		(285,376,000)
Statements of Comprehensive Income
Net income (loss)	(33,551,000)	(120,649,000)	235,843,000		(285,376,000)
Other comprehensive income (loss)	(10,257,000)	(26,674,000)			(43,900,000)
Comprehensive loss	(43,808,000)	(147,323,000)			(329,276,000)
Predecessor [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	48,988,000	117,366,000			240,295,000
Sales - third party	40,279,000	80,243,000			203,609,000
Net sales	89,267,000	197,609,000			443,904,000
Cost of sales	87,683,000	180,983,000			403,058,000
Gross profit (loss)	1,584,000	16,626,000			40,846,000
Research and development	1,083,000	3,377,000			9,738,000
Selling and administrative expenses	5,556,000	31,513,000			33,108,000
Impairment of long-lived assets and goodwill		35,381,000			75,650,000
Rationalizations	70,000	(68,000)			5,431,000
Operating loss	(5,125,000)	(53,577,000)			(83,081,000)
Other (income) expense, net	1,286,000	889,000			2,049,000
Interest expense - affiliate	0	372,000			806,000
Interest expense - third party	161,000	1,574,000			2,721,000
Interest income - affiliate	(226,000)	(3,000)			0
Interest income	0	0			0
Loss from continuing operations before provision for income taxes	(6,346,000)	(56,409,000)	16,172,000		(88,657,000)
(Benefit) provision for income taxes	634,000	384,000	274,000		(17,240,000)
Equity in loss from continuing operations of subsidiary	(11,868,000)	(14,430,000)			(34,348,000)
Net loss from continuing operations					(105,765,000)
Loss from discontinued operations, net of tax					(126,217,000)
Equity in loss from discontinued operations of subsidiary					(6,639,000)
Loss from discontinued operations, net of tax					(132,856,000)
Net income (loss)	(23,774,000)	(89,902,000)	207,505,000		(238,621,000)
Statements of Comprehensive Income
Net income (loss)	(23,774,000)	(89,902,000)	207,505,000		(238,621,000)
Other comprehensive income (loss)	(10,257,000)	(26,674,000)			(43,900,000)
Comprehensive loss	(34,031,000)	(116,576,000)			(282,521,000)
Predecessor [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates	31,898,000	52,683,000			142,651,000
Sales - third party	152,854,000	259,664,000			621,536,000
Net sales	184,752,000	312,347,000			764,187,000
Cost of sales	174,048,000	294,067,000			737,044,000
Gross profit (loss)	10,704,000	18,280,000			27,143,000
Research and development	0	0			0
Selling and administrative expenses	17,929,000	26,120,000			61,521,000
Impairment of long-lived assets and goodwill		0			0
Rationalizations	213,000	82,000			2,515,000
Operating loss	(7,438,000)	(7,922,000)			(36,893,000)
Other (income) expense, net	(2,099,000)	532,000			871,000
Interest expense - affiliate	0	0			0
Interest expense - third party	286,000	271,000			897,000
Interest income - affiliate	0	0			0
Interest income	(6,000)	(363,000)			(320,000)
Loss from continuing operations before provision for income taxes	(5,619,000)	(8,362,000)	73,829,000		(38,341,000)
(Benefit) provision for income taxes	6,248,000	6,068,000	(7,826,000)		(3,993,000)
Equity in loss from continuing operations of subsidiary	0	0			0
Net loss from continuing operations					(34,348,000)
Loss from discontinued operations, net of tax					(6,639,000)
Equity in loss from discontinued operations of subsidiary					0
Loss from discontinued operations, net of tax					(6,639,000)
Net income (loss)	(12,639,000)	(19,679,000)	69,318,000		(40,987,000)
Statements of Comprehensive Income
Net income (loss)	(12,639,000)	(19,679,000)	69,318,000		(40,987,000)
Other comprehensive income (loss)	(10,257,000)	(28,041,000)			(28,650,000)
Comprehensive loss	(22,896,000)	(47,720,000)			$ (69,637,000)
Successor [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates			0
Sales - third party			437,963,000
Net sales	193,133,000		437,963,000
Cost of sales	180,845,000		448,016,000
Additions to lower of cost or market reserve	0		18,974,000
Gross profit (loss)	12,288,000		(29,027,000)
Research and development	1,083,000		2,399,000
Selling and administrative expenses	23,485,000		57,725,000
Impairment of long-lived assets and goodwill	0		2,843,000
Rationalizations	283,000		59,000
Operating loss	(12,563,000)		(92,053,000)
Other (income) expense, net	(813,000)		(2,188,000)
Interest expense - affiliate			0
Interest expense - third party			26,914,000
Interest income - affiliate			0
Interest income	(6,000)		(358,000)
Loss from continuing operations before provision for income taxes	(21,743,000)		(116,421,000)
(Benefit) provision for income taxes	6,882,000		(7,552,000)
Equity in loss from continuing operations of subsidiary			0
Net loss from continuing operations	(28,625,000)	(101,970,000)	(108,869,000)
Loss from discontinued operations, net of tax	(4,926,000)	(18,679,000)	(126,974,000)
Equity in loss from discontinued operations of subsidiary	0	0	0
Loss from discontinued operations, net of tax	(4,926,000)	(18,679,000)	(126,974,000)
Net income (loss)	(33,551,000)	(120,649,000)	(235,843,000)
Statements of Comprehensive Income
Net income (loss)	(33,551,000)	(120,649,000)	(235,843,000)
Other comprehensive income (loss)	(10,257,000)		2,699,000
Comprehensive loss	(43,808,000)		(233,144,000)
Successor [Member] | Consolidating Entries and Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates			(179,263,000)
Sales - third party			0
Net sales			(179,263,000)
Cost of sales			(179,263,000)
Additions to lower of cost or market reserve			0
Gross profit (loss)			0
Research and development			0
Selling and administrative expenses			0
Impairment of long-lived assets and goodwill			0
Rationalizations			0
Operating loss			0
Other (income) expense, net			0
Interest expense - affiliate			(984,000)
Interest expense - third party			0
Interest income - affiliate			984,000
Interest income			0
Equity in loss from continuing operations of subsidiary			148,452,000
Net loss from continuing operations	30,715,000	85,653,000	148,452,000
Loss from discontinued operations, net of tax	0	0	0
Equity in loss from discontinued operations of subsidiary	5,698,000	23,928,000	128,371,000
Loss from discontinued operations, net of tax	5,698,000	23,928,000	128,371,000
Net income (loss)	36,413,000	109,581,000	276,823,000
Statements of Comprehensive Income
Net income (loss)	36,413,000	109,581,000	276,823,000
Other comprehensive income (loss)			(5,398,000)
Comprehensive loss			271,425,000
Successor [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates			0
Sales - third party			0
Net sales			0
Cost of sales			0
Additions to lower of cost or market reserve			0
Gross profit (loss)			0
Research and development			0
Selling and administrative expenses			0
Impairment of long-lived assets and goodwill			0
Rationalizations			0
Operating loss			0
Other (income) expense, net			6,000
Interest expense - affiliate			984,000
Interest expense - third party			25,430,000
Interest income - affiliate			0
Interest income			0
Equity in loss from continuing operations of subsidiary			(82,449,000)
Net loss from continuing operations	(28,625,000)	(101,970,000)	(108,869,000)
Loss from discontinued operations, net of tax	0	0	(1,918,000)
Equity in loss from discontinued operations of subsidiary	(4,926,000)	(18,679,000)	(125,056,000)
Loss from discontinued operations, net of tax	(4,926,000)	(18,679,000)	(126,974,000)
Net income (loss)	(33,551,000)	(120,649,000)	(235,843,000)
Statements of Comprehensive Income
Net income (loss)	(33,551,000)	(120,649,000)	(235,843,000)
Other comprehensive income (loss)			2,699,000
Comprehensive loss			(233,144,000)
Successor [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates			122,164,000
Sales - third party			87,028,000
Net sales			209,192,000
Cost of sales			190,558,000
Additions to lower of cost or market reserve			6,822,000
Gross profit (loss)			11,812,000
Research and development			2,399,000
Selling and administrative expenses			23,831,000
Impairment of long-lived assets and goodwill			0
Rationalizations			110,000
Operating loss			(14,528,000)
Other (income) expense, net			1,492,000
Interest expense - affiliate			0
Interest expense - third party			1,136,000
Interest income - affiliate			(984,000)
Interest income			0
Equity in loss from continuing operations of subsidiary			(66,003,000)
Net loss from continuing operations	(18,848,000)	(71,223,000)	(82,449,000)
Loss from discontinued operations, net of tax	(4,154,000)	(13,430,000)	(121,741,000)
Equity in loss from discontinued operations of subsidiary	(772,000)	(5,249,000)	(3,315,000)
Loss from discontinued operations, net of tax	(4,926,000)	(18,679,000)	(125,056,000)
Net income (loss)	(23,774,000)	(89,902,000)	(207,505,000)
Statements of Comprehensive Income
Net income (loss)	(23,774,000)	(89,902,000)	(207,505,000)
Other comprehensive income (loss)			2,699,000
Comprehensive loss			(204,806,000)
Successor [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales - affiliates			57,099,000
Sales - third party			350,935,000
Net sales			408,034,000
Cost of sales			436,721,000
Additions to lower of cost or market reserve			12,152,000
Gross profit (loss)			(40,839,000)
Research and development			0
Selling and administrative expenses			33,894,000
Impairment of long-lived assets and goodwill			2,843,000
Rationalizations			(51,000)
Operating loss			(77,525,000)
Other (income) expense, net			(3,686,000)
Interest expense - affiliate			0
Interest expense - third party			348,000
Interest income - affiliate			0
Interest income			(358,000)
Equity in loss from continuing operations of subsidiary			0
Net loss from continuing operations	(11,867,000)	(14,430,000)	(66,003,000)
Loss from discontinued operations, net of tax	(772,000)	(5,249,000)	(3,315,000)
Equity in loss from discontinued operations of subsidiary	0	0	0
Loss from discontinued operations, net of tax	(772,000)	(5,249,000)	(3,315,000)
Net income (loss)	(12,639,000)	(19,679,000)	(69,318,000)
Statements of Comprehensive Income
Net income (loss)	$ (12,639,000)	$ (19,679,000)	(69,318,000)
Other comprehensive income (loss)			2,699,000
Comprehensive loss			$ (66,619,000)