Intangible Assets (Details 1) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 27,060	$ 31,460
Accumulated Amortization	(7,172)	(10,527)
Net Carrying Amount	19,888	20,933
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,114	26,524
Accumulated Amortization	(4,806)	(8,547)
Net Carrying Amount	17,308	17,977
Intellectual property and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,946	4,936
Accumulated Amortization	(2,366)	(1,980)
Net Carrying Amount	$ 2,580	$ 2,956