Goodwill and Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gross carrying amount:
Gross carrying amount, Beginning balance	$ 46,299	$ 46,119
Disposition of TJG assets	(2,302)
FX adjustments and other	(585)	180
Gross carrying amount, Ending balance	43,412	46,299	46,119
Accumulated amortization:
Accumulated amortization, Beginning balance	(32,717)	(27,720)
Amortization expense	(3,531)	(4,802)	(5,400)
Disposition of TJG assets	1,761
FX adjustments and other	514	195
Accumulated amortization, Ending balance	(33,973)	(32,717)	(27,720)
Net carrying amount:
Net carrying amount, Beginning balance	13,582
Net carrying amount, Ending balance	9,439	13,582
Customer Relationships [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	39,815	39,665
Disposition of TJG assets	(829)
FX adjustments and other	(490)	150
Gross carrying amount, Ending balance	38,496	39,815
Accumulated amortization:
Accumulated amortization, Beginning balance	(27,168)	(23,655)
Amortization expense	(3,122)	(3,355)
Disposition of TJG assets	371
FX adjustments and other	423	158
Accumulated amortization, Ending balance	(29,496)	(27,168)
Net carrying amount:
Net carrying amount, Beginning balance	12,647
Net carrying amount, Ending balance	9,000	12,647
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
Trademarks [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	1,090	1,081
Disposition of TJG assets	0
FX adjustments and other	(31)	9
Gross carrying amount, Ending balance	1,059	1,090
Accumulated amortization:
Accumulated amortization, Beginning balance	(700)	(473)
Amortization expense	(197)	(215)
Disposition of TJG assets	0
FX adjustments and other	28	12
Accumulated amortization, Ending balance	(869)	(700)
Net carrying amount:
Net carrying amount, Beginning balance	390
Net carrying amount, Ending balance	190	390
Estimated useful life (years)	6 years
Non-compete Agreements [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	2,529	2,508
Disposition of TJG assets	(808)
FX adjustments and other	(64)	21
Gross carrying amount, Ending balance	1,657	2,529
Accumulated amortization:
Accumulated amortization, Beginning balance	(2,142)	(1,565)
Amortization expense	(137)	(552)
Disposition of TJG assets	808
FX adjustments and other	63	25
Accumulated amortization, Ending balance	(1,408)	(2,142)
Net carrying amount:
Net carrying amount, Beginning balance	387
Net carrying amount, Ending balance	249	387
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
Trade Names [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	2,865	2,865
Disposition of TJG assets	(665)
FX adjustments and other	0	0
Gross carrying amount, Ending balance	2,200	2,865
Accumulated amortization:
Accumulated amortization, Beginning balance	(2,707)	(2,027)
Amortization expense	(75)	(680)
Disposition of TJG assets	582
FX adjustments and other	0	0
Accumulated amortization, Ending balance	(2,200)	(2,707)
Net carrying amount:
Net carrying amount, Beginning balance	158
Net carrying amount, Ending balance	$ 0	$ 158
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