Leases - Summary of Supplemental Cash Flows Information Related to Leases (Details) $ in Thousands |
3 Months Ended |
---|---|
Mar. 31, 2019
USD ($)
| |
Lessee Lease Description [Line Items] | |
Total operating leases | $ 4,692 |
For operating leases | 434 |
Operating Leases, Excluding Seattle Office Lease | |
Lessee Lease Description [Line Items] | |
Total operating leases | 345 |
Seattle Office Lease, Including Amendment | |
Lessee Lease Description [Line Items] | |
Total operating leases | $ 4,347 |