Commitments and Contingencies - San Francisco Office Lease (Details) - USD ($) $ in Thousands |
1 Months Ended |
12 Months Ended |
|
May. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Operating Leased Assets [Line Items] |
|
|
|
| Property and equipment net, capitalized |
|
$ 71,390
|
$ 30,731
|
| Lease financing obligations, current |
|
28,900
|
6,600
|
| Lease |
|
|
|
| Operating Leased Assets [Line Items] |
|
|
|
| Total future minimum lease commitments amount |
|
85,394
|
|
| San Francisco Office |
|
|
|
| Operating Leased Assets [Line Items] |
|
|
|
| Total future minimum lease commitments period |
10 years
|
|
|
| Standby letter of credit |
$ 800
|
|
|
| Lease financing obligations, current |
|
$ 6,800
|
6,600
|
| Estimated useful life |
|
40 years
|
|
| San Francisco Office | Debt Redemption Period August 1, 2017 to August 1, 2020 |
|
|
|
| Operating Leased Assets [Line Items] |
|
|
|
| Amount of annual reduction of letter of credit |
200
|
|
|
| San Francisco Office | Lease |
|
|
|
| Operating Leased Assets [Line Items] |
|
|
|
| Total future minimum lease commitments amount |
$ 7,000
|
|
|
| Capitalized facility leases | San Francisco Office |
|
|
|
| Operating Leased Assets [Line Items] |
|
|
|
| Property and equipment net, capitalized |
|
$ 8,500
|
$ 6,600
|