Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Net Sales:
Net sales	$ 187,339	$ 196,873	$ 557,847	$ 587,582
Segment EBIT:
Segment EBIT	14,435	20,417	30,846	72,170
Reconciliation of Segment EBIT to Net Income (Loss):
Retained corporate costs	(5,701)	(6,925)	(18,087)	(20,699)
Goodwill impairment (note 14)	(79,700)	0	(79,700)	0
Pension settlement	0	0	0	(212)
Reorganization charges	0	0	(2,488)	0
Product portfolio optimization	0	0	0	(6,784)
Executive terminations	0	98	0	(4,521)
Interest expense	(5,118)	(5,231)	(15,123)	(15,629)
Provision for income taxes	(2,731)	(5,450)	(1,665)	(12,003)
Net income (loss)	(78,815)	2,909	(86,217)	12,322
Depreciation & Amortization:
Depreciation and amortization	11,233	11,234	33,616	36,669
Capital Expenditures:
Capital Expenditures	12,092	8,012	39,140	23,523
United States & Canada
Net Sales:
Net sales	112,252	117,268	343,452	354,381
Segment EBIT:
Segment EBIT	10,761	18,635	33,307	55,932
Depreciation & Amortization:
Depreciation and amortization	2,850	2,883	9,016	9,718
Capital Expenditures:
Capital Expenditures	2,751	3,037	7,145	9,030
Latin America
Net Sales:
Net sales	35,339	40,149	102,564	114,971
Segment EBIT:
Segment EBIT	3,721	1,954	2,549	15,226
Reconciliation of Segment EBIT to Net Income (Loss):
Goodwill impairment (note 14)			(79,700)
Depreciation & Amortization:
Depreciation and amortization	4,850	4,667	13,757	13,725
Capital Expenditures:
Capital Expenditures	3,937	2,041	15,401	5,717
EMEA
Net Sales:
Net sales	33,743	32,489	90,128	93,058
Segment EBIT:
Segment EBIT	1,482	175	(1,412)	33
Reconciliation of Segment EBIT to Net Income (Loss):
Goodwill impairment (note 14)			0
Depreciation & Amortization:
Depreciation and amortization	1,816	1,885	5,508	7,660
Capital Expenditures:
Capital Expenditures	5,050	1,549	15,446	4,656
Other Segments
Net Sales:
Net sales	6,005	6,967	21,703	25,172
Segment EBIT:
Segment EBIT	(1,529)	(347)	(3,598)	979
Depreciation & Amortization:
Depreciation and amortization	1,138	1,325	3,821	4,162
Capital Expenditures:
Capital Expenditures	348	939	816	2,529
Corporate
Depreciation & Amortization:
Depreciation and amortization	579	474	1,514	1,404
Capital Expenditures:
Capital Expenditures	$ 6	$ 446	$ 332	$ 1,591