Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2015	Sep. 30, 2018	Sep. 30, 2017
Goodwill [Roll Forward]
December 31, 2017				$ 199,946
Foreign exchange impact				(1,407)
September 30, 2018	$ 170,652			170,652
Goodwill, Impairment Loss	(27,887)	$ 0	$ (75,400)	(27,887)	$ 0
North America
Goodwill [Roll Forward]
December 31, 2017				170,685
Foreign exchange impact				(33)
September 30, 2018	170,652			170,652
Goodwill, Impairment Loss				0
LATAM SEF [Member]
Goodwill [Roll Forward]
December 31, 2017				21,815
Foreign exchange impact				(1,037)
September 30, 2018	0			0
Goodwill, Impairment Loss				20,778
EMEA [Member]
Goodwill [Roll Forward]
December 31, 2017				7,447
Foreign exchange impact				(338)
September 30, 2018	0			0
Goodwill, Impairment Loss				$ 7,109
LATAM SEF [Member]
Goodwill [Roll Forward]
Goodwill, Impairment Loss	(7,100)
EMEA [Member]
Goodwill [Roll Forward]
Goodwill, Impairment Loss	$ (20,800)