Leases - Summary of Total Lease Costs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Lease cost
Operating lease cost	$ 1,333
Short-term lease cost	955
Sublease income	(13)
Total lease cost	2,275
Gain on sale and leaseback transactions, net	207
Operating cash flows from operating leases	1,392
Operating leases	$ 2,234
Operating leases	5 years 8 months 12 days
Operating leases	5.40%