Segments and Geographic Information (Reconciliation of Segment EBIT to Net Income) (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2017 USD ($) segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment		3
Net Sales:
Net sales		$ 781,828	$ 793,420	$ 822,345
Segment EBIT:
Segment EBIT		52,117	90,420	108,282
Reconciliation of Segment EBIT to Net Income (Loss):
Retained corporate costs		(27,099)	(27,265)	(34,645)
Goodwill impairment (note 4)		(79,700)	0	0
Pension settlement charges (note 8)		0	(168)	(21,693)
Environmental obligation (note 17)		0	0	(157)
Reorganization charges		(2,488)	0	(4,316)
Product portfolio optimization (1)	[1]	0	(5,693)	0
Work stoppage (2)	[2]	0	(4,162)	0
Executive terminations		0	(4,460)	(870)
Interest expense		(20,400)	(20,888)	(18,484)
(Provision) benefit for income taxes		(15,798)	(17,711)	38,216
Net income (loss)		(93,368)	10,073	66,333
Depreciation & Amortization:
Depreciation and amortization		45,544	48,486	42,712
Capital Expenditures:
Capital Expenditures		47,628	34,604	48,136
Segment Assets:
Accounts Receivable, Net and Inventory, Net		277,883	255,122	272,406
U.S. & Canada
Net Sales:
Net sales		481,797	482,296	492,051
Segment EBIT:
Segment EBIT		48,044	75,449	78,144
Depreciation & Amortization:
Depreciation and amortization		12,665	12,748	12,214
Capital Expenditures:
Capital Expenditures		10,056	10,671	25,106
Segment Assets:
Accounts Receivable, Net and Inventory, Net		147,809	130,390	140,840
Latin America
Net Sales:
Net sales		144,322	151,389	167,069
Segment EBIT:
Segment EBIT		6,590	12,583	22,235
Reconciliation of Segment EBIT to Net Income (Loss):
Goodwill impairment (note 4)		(79,700)	0
Depreciation & Amortization:
Depreciation and amortization		18,576	19,068	14,738
Capital Expenditures:
Capital Expenditures		18,520	11,032	11,944
Segment Assets:
Accounts Receivable, Net and Inventory, Net		63,093	63,838	68,599
EMEA
Net Sales:
Net sales		126,924	126,591	129,549
Segment EBIT:
Segment EBIT		1,321	1,387	3,289
Depreciation & Amortization:
Depreciation and amortization		7,377	9,377	8,510
Capital Expenditures:
Capital Expenditures		17,158	7,571	6,773
Segment Assets:
Accounts Receivable, Net and Inventory, Net		48,270	44,588	48,924
Other Segments
Net Sales:
Net sales		28,785	33,144	33,676
Segment EBIT:
Segment EBIT		(3,838)	1,001	4,614
Depreciation & Amortization:
Depreciation and amortization		5,088	5,588	5,855
Capital Expenditures:
Capital Expenditures		1,226	2,905	1,855
Segment Assets:
Accounts Receivable, Net and Inventory, Net		18,711	16,306	14,043
Corporate
Depreciation & Amortization:
Depreciation and amortization		1,838	1,705	1,395
Capital Expenditures:
Capital Expenditures		$ 668	$ 2,425	$ 2,458

[1] Product portfolio optimization relates to inventory reductions to simplify and improve our operations.

[2] Work stoppage relates to the lower production volume impact, shipping costs and other direct incremental expenses associated with the two-week Toledo, Ohio work stoppage in the fourth quarter of 2016.