Leases - Schedule of Lease Cost and Assumptions (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 3,190	$ 6,547
Cash paid for amounts included in the measurement of operating liabilities		5,461
Right-of-use assets obtained in exchange for new lease liabilities		$ 4,274
Weighted-average remaining lease term - operating leases	4 years 2 months 19 days	4 years 2 months 19 days
Weighted-average discount rate - operating leases	5.76%	5.76%