Leases - Additional Information (Details) - extension_option	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term for operating leases		6 years 7 days
Weighted average incremental borrowing rate used to measure lease liabilities		8.44%
Minimum
Lessee, Lease, Description [Line Items]
Initial term of lease		3 years
Renewable term of lease		3 years
Maximum
Lessee, Lease, Description [Line Items]
Initial term of lease		10 years
Renewable term of lease		5 years
Corporate Office Lease
Lessee, Lease, Description [Line Items]
Number of extensions	2
Renewable term of lease	5 years