Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Aug. 14, 2015	Dec. 31, 2016	Dec. 31, 2014	Dec. 31, 2013
Cash flow from operating activities:
Net Loss			$ (235,843)
Adjustments to reconcile net loss to cash provided by operations:
Loss on divestiture				$ 0
Predecessor [Member]
Cash flow from operating activities:
Net Loss	$ (33,551)	$ (120,649)	235,843	(285,376)
Adjustments to reconcile net loss to cash provided by operations:
Depreciation and amortization		45,461		119,708
Impairment of long-lived assets and goodwill		35,381		197,220
Rationalization related fixed asset write offs		0		926
Inventory write-downs		0		19,600
Deferred income taxes		924		(16,003)
Post-retirement and pension plan charges		2,998		23,047
Stock-based compensation		15,357		5,577
Non-cash interest expense		14,180		15,693
Loss on divestiture		0
Other charges, net		102		1,441
Net change in working capital		(45,594)		(56,846)	$ (56,846)
Change in long-term assets and liabilities		(11,025)		(17,776)
Net cash provided by operating activities		28,323	22,815	120,903
Cash flow from investing activities:
Capital expenditures		(32,301)	(27,858)	(84,981)
Insurance proceeds		0		2,834
Cash received from divestitures		0	15,889	0
Derivative instrument settlements, net		(8,263)	377	(2,025)
Proceeds from the sale of fixed assets		646	1,121	5,042
Other		0		178
Net cash used in investing activities		(39,918)	(10,471)	(78,952)
Cash flow from financing activities:
Short-term debt (reductions) borrowings, net		18,511	7,363	(1,021)
Credit Facility borrowings		160,000	56,000	269,000
Credit Facility reductions		(99,000)	(70,469)	(293,000)
Repayment of Senior Subordinated Notes		(200,000)		0
Issuance of preferred shares	0	150,000	0	0
Principal payments on long-term debt		(89)	(289)	(192)
Supply chain financing		0		(9,455)
Proceeds from exercise of stock options		32		2,813
Purchase of treasury shares		(63)		(894)
Refinancing fees and debt issuance costs		(5,068)	(922)	(3,279)
Other		(3,499)		951
Net cash (used in) provided by financing activities		20,824	(8,317)	(35,077)
Net change in cash and cash equivalents		9,229	4,027	6,874
Effect of exchange rate changes on cash and cash equivalents		(1,746)	656	(1,212)
Cash and cash equivalents at beginning of period	25,033	17,550	6,927	11,888
Cash and cash equivalents at end of period	6,927	25,033	11,610	17,550	11,888
Supplemental disclosures of cash flow information:
Interest		10,661			21,549
Income taxes		5,016			10,611
Non-cash operating, investing and financing activities:
Common stock issued to savings and pension plan trusts		1,874			4,381
Decrease (increase) in current assets:
Accounts and notes receivable, net		61,008			28,466
Inventories		1,164			77,875
Prepaid expenses and other current assets		2,551			(14,898)
Change in accounts payables and accruals		(18,728)			(25,849)
Rationalizations		(2,677)			(8,732)
Increase in interest payable		2,276			(16)
Net change in working capital		(45,594)		$ (56,846)	$ (56,846)
Successor [Member]
Cash flow from operating activities:
Net Loss	(33,551)	(120,649)	(235,843)
Adjustments to reconcile net loss to cash provided by operations:
Depreciation and amortization	28,618		82,891
Impairment of long-lived assets and goodwill	0		122,750
Rationalization related fixed asset write offs	0		636
Inventory write-downs	0		1,770
Deferred income taxes	5,368		(12,062)
Post-retirement and pension plan charges	2,638		(698)
Stock-based compensation	0		0
Non-cash interest expense	2,351		6,551
Loss on divestiture	0		198
Other charges, net	(1,934)		(2,641)
Net change in working capital	(26,763)		(68,630)
Change in long-term assets and liabilities	(7,138)		(9,367)
Net cash provided by operating activities	23,115		22,815
Cash flow from investing activities:
Capital expenditures	(18,442)		(27,858)
Insurance proceeds	0		0
Cash received from divestitures	0		15,889
Derivative instrument settlements, net	326		377
Proceeds from the sale of fixed assets	632		1,121
Other	0		0
Net cash used in investing activities	(17,484)		(10,471)
Cash flow from financing activities:
Short-term debt (reductions) borrowings, net	(15,504)		7,363
Credit Facility borrowings	62,000		56,000
Credit Facility reductions	(68,000)		(70,469)
Repayment of Senior Subordinated Notes	0		0
Issuance of preferred shares	1,385
Principal payments on long-term debt	(183)		(289)
Supply chain financing	0		0
Proceeds from exercise of stock options	0		0
Purchase of treasury shares	0		0
Refinancing fees and debt issuance costs	0		(922)
Other	(1,385)		0
Net cash (used in) provided by financing activities	(23,072)		(8,317)
Net change in cash and cash equivalents	(17,441)		4,027
Effect of exchange rate changes on cash and cash equivalents	(665)		656
Cash and cash equivalents at beginning of period	25,033		6,927
Cash and cash equivalents at end of period	6,927	$ 25,033	11,610
Supplemental disclosures of cash flow information:
Interest	10,880		23,578
Income taxes	1,646		3,329
Non-cash operating, investing and financing activities:
Common stock issued to savings and pension plan trusts	0		0
Decrease (increase) in current assets:
Accounts and notes receivable, net	(9,524)		3,432
Inventories	47,853		53,548
Prepaid expenses and other current assets	15,935		(1,424)
Change in accounts payables and accruals	(21,503)		15,757
Rationalizations	(3,756)		(2,758)
Increase in interest payable	(2,242)		75
Net change in working capital	$ (26,763)		$ (68,630)