Leases (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use assets, net	$ 10,137	$ 10,137	$ 11,400
Finance lease liability	7,069	7,069	11,400
Lease, Cost [Abstract]
Amortization of ROU assets	553	1,254
Interest on lease liabilities	87	214
Operating lease cost	675	2,254
Short-term lease cost	2,527	7,355
Total lease expense	$ 3,842	11,077
Operating cash flows from operating leases		2,254
Operating cash flows from finance leases		197
Financing cash flows from finance leases		1,171
ROU assets obtained in exchange for new lease liabilities, Finance leases		4,148
ROU assets obtained in exchange for new lease liabilities, Operating leases		$ 12,006
Weighted-average remaining lease term (years), Finance leases	3 years 3 months 10 days	3 years 3 months 10 days
Weighted-average remaining lease term (years), Operating leases	4 years 11 months 23 days	4 years 11 months 23 days
Weighted-average discount rate, Finance leases	4.90%	4.90%
Weighted-average discount rate, Operating leases	5.00%	5.00%
Assets and Liabilities, Lessee [Abstract]
Finance lease ROU assets	$ 6,937	$ 6,937
Operating lease ROU assets	10,137	10,137	11,400
Finance lease liabilities, Current	2,142	2,142		$ 883
Operating lease liabilities, Current	2,245	2,245
Finance lease liabilities, Noncurrent	4,927	4,927		3,209
Operating lease liabilities, Noncurrent	7,890	7,890
Finance Lease Liabilities, Payments
Remainder of 2019	606	606
2020	2,426	2,426
2021	2,426	2,426
2022	1,492	1,492
2023	642	642
Thereafter	38	38
Total lease payments	7,630	7,630
Less: Interest	(561)	(561)
Present value of lease liabilities	7,069	7,069	$ 11,400
Less: Current portion of lease obligation	(2,142)	(2,142)		(883)
Finance lease obligations	4,927	4,927		3,209
Operating Lease Liabilities, Payments Due
Remainder of 2019	678	678
2020	2,660	2,660
2021	2,256	2,256
2022	1,914	1,914
2023	1,776	1,776
Thereafter	2,113	2,113
Total lease payments	11,397	11,397
Less: Interest	(1,262)	(1,262)
Present value of lease liabilities	10,135	10,135
Less: Current portion of lease obligation	(2,245)	(2,245)
Total long-term lease obligation	$ 7,890	$ 7,890
Capital Lease Maturities
2019				1,052
2020				1,052
2021				1,052
2022				909
2023				451
Thereafter				0
Total lease payments				4,516
Less: Interest				(424)
Present value of lease liabilities				4,092
Less: Current portion of lease obligation				(883)
Total long-term lease obligation				3,209
Operating Lease Maturities
2019				4,242
2020				2,258
2021				2,107
2022				1,782
2023				1,495
Thereafter				1,488
Total lease payments				$ 13,372
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term		1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term		8 years