Intangible Assets- Amortization (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 12,408	$ 26,263
Accumulated Amortization	(6,283)	(9,919)
Net Carrying Amount	6,125	16,344
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	19,272	22,348
Accumulated Amortization	(7,011)	(7,473)
Net Carrying Amount	12,261	14,875
Customer relationships | Disposal Group, Held-for-sale, Not Discontinued Operations
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,198
Accumulated Amortization	(3,197)
Net Carrying Amount	7,001
Intellectual property and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,334	3,915
Accumulated Amortization	(2,469)	(2,446)
Net Carrying Amount	$ 865	$ 1,469