Operating Leases - Summary of Lease Cost and Other Information (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 1,450	$ 2,864
Operating cash flows from operating leases		$ 2,749
Weighted Average Remaining Lease Term (years)	7 years 2 months 12 days	7 years 2 months 12 days
Weighted Average Discount Rate	7.10%	7.10%