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Lease Costs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 1,341
Variable Lease, Cost	236
Sublease income	(235)
Net lease cost	1,342
Remainder of 2019	4,797
2020	5,634
2021	5,322
2022	5,468
2023	5,279
2024	4,293
Thereafter	10,081
Total lease payments	40,874
Present value adjustment	(12,097)
Lease liabilities	$ 28,777

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