Commitments and Contingencies - Summary of Leases and Debt Obligations (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Debt obligations, Less than 1 Year	$ 427	[1]
Debt obligations, 1 to 3 Years	115,000	[1]
Debt obligations, Total	115,427	[1]
Capital leases, Less than 1 Year	121	[2]
Total minimum capital lease payments	121	[2]
Operating leases, Less than 1 Year	3,646	[2]
Operating leases, 1 to 3 Years	7,547	[2]
Operating leases, 3 to 5 Years	7,463	[2]
Operating leases, More than 5 Years	1,331	[2]
Total minimum operating lease payments	19,987	[2]
Lease and debt obligation, Less than 1 Year	4,194
Lease and debt obligation, 1 to 3 Years	122,547
Lease and debt obligation, 3 to 5 Years	7,463
Lease and debt obligation, More than 5 Years	1,331
Lease and debt obligation, Total	$ 135,535

[1] The debt obligations include the principal amount of the note payable and the Notes, but exclude interest payments to be made under the Notes. Although the Notes mature in 2022, they can be converted into cash and shares of our common stock prior to maturity if certain conditions are met. Any conversion prior to maturity can result in repayments of the principal amounts sooner than the scheduled repayments as indicated in the table. The Notes balance excludes $20.9 million of debt discount capitalized on our balance sheet and shown net of our debt obligations.

[2] Operating and capital leases include total future minimum rent payments under non-cancelable operating and capital lease agreements.