Goodwill and Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Gross carrying amount:
Gross carrying amount, Beginning balance	$ 46,119	$ 45,522
FX adjustments and other	180	426
Gross carrying amount, Ending balance	46,299	46,119	45,522
Accumulated amortization:
Accumulated amortization, Beginning balance	(27,720)	(22,116)
Amortization expense	(4,802)	(5,394)	4,600
FX adjustments and other	(195)	(210)
Accumulated amortization, Ending balance	(32,717)	(27,720)	(22,116)
Net carrying amount:
Net carrying amount, Beginning balance	18,399
Net carrying amount, Ending balance	13,582	18,399
Acquisition of CRC [Member]
Gross carrying amount:
Acquisition of Intangible Asset		128
Acquisition of QFS [Member]
Gross carrying amount:
Acquisition of Intangible Asset		43
Customer Relationships [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	39,665	39,306
FX adjustments and other	150	359
Gross carrying amount, Ending balance	39,815	39,665
Accumulated amortization:
Accumulated amortization, Beginning balance	(23,655)	(19,793)
Amortization expense	(3,355)	(3,692)
FX adjustments and other	(158)	(170)
Accumulated amortization, Ending balance	(27,168)	(23,655)
Net carrying amount:
Net carrying amount, Beginning balance	16,010
Net carrying amount, Ending balance	12,647	16,010
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] | Acquisition of CRC [Member]
Gross carrying amount:
Acquisition of Intangible Asset		0
Customer Relationships [Member] | Acquisition of QFS [Member]
Gross carrying amount:
Acquisition of Intangible Asset		0
Trademarks [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	1,081	1,058
FX adjustments and other	9	23
Gross carrying amount, Ending balance	1,090	1,081
Accumulated amortization:
Accumulated amortization, Beginning balance	(473)	(224)
Amortization expense	(215)	(238)
FX adjustments and other	(12)	(11)
Accumulated amortization, Ending balance	(700)	(473)
Net carrying amount:
Net carrying amount, Beginning balance	608
Net carrying amount, Ending balance	390	608
Estimated useful life (years)	6 years
Trademarks [Member] | Acquisition of CRC [Member]
Gross carrying amount:
Acquisition of Intangible Asset		0
Trademarks [Member] | Acquisition of QFS [Member]
Gross carrying amount:
Acquisition of Intangible Asset		0
Non-compete Agreements [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	2,508	2,293
FX adjustments and other	21	44
Gross carrying amount, Ending balance	2,529	2,508
Accumulated amortization:
Accumulated amortization, Beginning balance	(1,565)	(785)
Amortization expense	(552)	(751)
FX adjustments and other	(25)	(29)
Accumulated amortization, Ending balance	(2,142)	(1,565)
Net carrying amount:
Net carrying amount, Beginning balance	943
Net carrying amount, Ending balance	387	943
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] | Acquisition of CRC [Member]
Gross carrying amount:
Acquisition of Intangible Asset		128
Non-compete Agreements [Member] | Acquisition of QFS [Member]
Gross carrying amount:
Acquisition of Intangible Asset		43
Trade Names [Member]
Gross carrying amount:
Gross carrying amount, Beginning balance	2,865	2,865
FX adjustments and other	0	0
Gross carrying amount, Ending balance	2,865	2,865
Accumulated amortization:
Accumulated amortization, Beginning balance	(2,027)	(1,314)
Amortization expense	(680)	(713)
FX adjustments and other	0	0
Accumulated amortization, Ending balance	(2,707)	(2,027)
Net carrying amount:
Net carrying amount, Beginning balance	838
Net carrying amount, Ending balance	158	838
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] | Acquisition of CRC [Member]
Gross carrying amount:
Acquisition of Intangible Asset		0
Trade Names [Member] | Acquisition of QFS [Member]
Gross carrying amount:
Acquisition of Intangible Asset		$ 0