Goodwill and Intangible Assets (Noncurrent Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Gross carrying amount:
Gross carrying amount, Beginning balance	$ 43,412	$ 46,299
Disposition of assets	(518)
FX adjustments and other	(502)	(585)
Gross carrying amount, Ending balance	42,392	43,412	$ 46,299
Accumulated amortization:
Accumulated amortization, Beginning balance	(33,973)	(32,717)
Amortization expense	(2,458)	(3,531)	(4,800)
FX adjustments and other	477	514
Accumulated amortization, Ending balance	(35,708)	(33,973)	(32,717)
Net carrying amount:
Net carrying amount, Beginning balance	9,439
Net carrying amount, Ending balance	6,684	9,439
TJG Holdings LLC [Member]
Gross carrying amount:
Disposition of assets		(2,302)
Accumulated amortization:
Disposition of assets		1,761
SDS [Domain]
Accumulated amortization:
Disposition of assets	246
Customer Relationships [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	38,496	39,815
Disposition of assets	(291)
FX adjustments and other	(421)	(490)
Gross carrying amount, Ending balance	37,784	38,496	39,815
Accumulated amortization:
Accumulated amortization, Beginning balance	(29,496)	(27,168)
Amortization expense	(2,211)	(3,122)
FX adjustments and other	397	423
Accumulated amortization, Ending balance	(31,246)	(29,496)	(27,168)
Net carrying amount:
Net carrying amount, Beginning balance	9,000
Net carrying amount, Ending balance	$ 6,538	9,000
Customer Relationships [Member] | Minimum [Member]
Net carrying amount:
Estimated useful life (years)	6 years
Customer Relationships [Member] | Maximum [Member]
Net carrying amount:
Estimated useful life (years)	20 years
Customer Relationships [Member] | TJG Holdings LLC [Member]
Gross carrying amount:
Disposition of assets		(829)
Accumulated amortization:
Disposition of assets		371
Customer Relationships [Member] | SDS [Domain]
Accumulated amortization:
Disposition of assets	$ 64
Trademarks [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	1,059	1,090
Disposition of assets	(101)
FX adjustments and other	(27)	(31)
Gross carrying amount, Ending balance	931	1,059	1,090
Accumulated amortization:
Accumulated amortization, Beginning balance	(869)	(700)
Amortization expense	(125)	(197)
FX adjustments and other	26	28
Accumulated amortization, Ending balance	(881)	(869)	(700)
Net carrying amount:
Net carrying amount, Beginning balance	190
Net carrying amount, Ending balance	$ 50	190
Estimated useful life (years)	6 years
Trademarks [Member] | TJG Holdings LLC [Member]
Gross carrying amount:
Disposition of assets		0
Accumulated amortization:
Disposition of assets		0
Trademarks [Member] | SDS [Domain]
Accumulated amortization:
Disposition of assets	$ 87
Non-compete Agreements [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	1,657	2,529
Disposition of assets	(126)
FX adjustments and other	(54)	(64)
Gross carrying amount, Ending balance	1,477	1,657	2,529
Accumulated amortization:
Accumulated amortization, Beginning balance	(1,408)	(2,142)
Amortization expense	(122)	(137)
FX adjustments and other	54	63
Accumulated amortization, Ending balance	(1,381)	(1,408)	(2,142)
Net carrying amount:
Net carrying amount, Beginning balance	249
Net carrying amount, Ending balance	$ 96	249
Non-compete Agreements [Member] | Minimum [Member]
Net carrying amount:
Estimated useful life (years)	1 year
Non-compete Agreements [Member] | Maximum [Member]
Net carrying amount:
Estimated useful life (years)	5 years
Non-compete Agreements [Member] | TJG Holdings LLC [Member]
Gross carrying amount:
Disposition of assets		(808)
Accumulated amortization:
Disposition of assets		808
Non-compete Agreements [Member] | SDS [Domain]
Accumulated amortization:
Disposition of assets	$ 95
Trade Names [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	2,200	2,865
Disposition of assets	0
FX adjustments and other	0	0
Gross carrying amount, Ending balance	2,200	2,200	2,865
Accumulated amortization:
Accumulated amortization, Beginning balance	(2,200)	(2,707)
Amortization expense	0	(75)
FX adjustments and other	0	0
Accumulated amortization, Ending balance	(2,200)	(2,200)	$ (2,707)
Net carrying amount:
Net carrying amount, Beginning balance	0
Net carrying amount, Ending balance	$ 0	0
Trade Names [Member] | Minimum [Member]
Net carrying amount:
Estimated useful life (years)	4 years
Trade Names [Member] | Maximum [Member]
Net carrying amount:
Estimated useful life (years)	5 years
Trade Names [Member] | TJG Holdings LLC [Member]
Gross carrying amount:
Disposition of assets		(665)
Accumulated amortization:
Disposition of assets		$ 582
Trade Names [Member] | SDS [Domain]
Accumulated amortization:
Disposition of assets	$ 0