Lease - Schedule of Supplemental Information Related to Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use assets	$ 27,136	$ 0
Current portion of operating lease liabilities	8,429	0
Non-current portion of operating lease liabilities	22,196	$ 0
Total operating lease liabilities	30,625
Cash paid for amounts included in the measurement of operating lease liabilities	7,494,000
Right-of-use assets obtained in exchange for operating lease liabilities	$ 2,656,000
Weighted-average remaining lease term for operating leases (years)	5 years 7 months 30 days
Weighted-average discount rate for operating leases	4.77%