Goodwill and Other Intangible Assets, net - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible assets subject to amortization
Gross Carrying Amount	$ 144,120	$ 139,320
Accumulated Amortization	(42,654)	(28,337)
Net Book Value	101,466	110,983
Total intangible assets other than goodwill
Gross Carrying Amount	160,520	155,720
Net Book Value	117,866	127,383
Aggregate amortization expense of intangible assets	14,317	7,176	$ 4,902
Tradenames
Indefinite lived assets:
Net Book Value	16,400	16,400
Total intangible assets other than goodwill
Gross Carrying Amount	$ 16,400	$ 16,400
Customer relationships
Intangible assets subject to amortization
Weighted average remaining lives	7 years 4 months 24 days	8 years 3 months 18 days
Gross Carrying Amount	$ 132,720	$ 127,920
Accumulated Amortization	(31,254)	(16,937)
Net Book Value	101,466	110,983
Non-compete agreements
Intangible assets subject to amortization
Gross Carrying Amount	11,400	11,400
Accumulated Amortization	$ (11,400)	$ (11,400)