Commitments and Contingencies - Finance Leases (Details) - USD ($)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2018 |
Dec. 31, 2017 |
| Finance lease costs |
|
|
| Right of use assets obtained in exchange for new finance lease liabilities |
$ 2,200
|
|
| Restricted Cash |
|
|
| Leased property, net |
146,751
|
$ 87,065
|
| Sale Leaseback Agreements |
|
|
| Total Payments of future minimum lease payments |
|
|
| 2019 |
59,151
|
|
| 2020 |
6,722
|
|
| 2021 |
6,722
|
|
| 2022 |
4,975
|
|
| 2023 |
3,166
|
|
| 2024 and thereafter |
16,154
|
|
| Total future minimum lease payments |
96,890
|
|
| Less imputed lease interest |
(14,986)
|
|
| Total lease liabilities |
81,904
|
|
| Finance lease costs |
|
|
| Amortization of right of use asset |
7,549
|
|
| Interest on finance obligations |
6,908
|
|
| Total finance lease cost |
14,457
|
|
| Other information |
|
|
| Cash payments |
$ 33,715
|
|
| Weighted average remaining lease term (years) |
3 years 2 months 1 day
|
|
| Weighted average discount rate |
11.80%
|
|
| Restricted Cash |
|
|
| Restricted cash |
$ 34,300
|
|
| Letter of credit |
36,800
|
|
| Finance obligation |
|
|
| Restricted Cash |
|
|
| Letter of credit |
500
|
|
| Finance obligation | Property and equipment |
|
|
| Total Payments of future minimum lease payments |
|
|
| Total future minimum lease payments |
2,500
|
|
| ASU 2016-02 | Restatement adjustment |
|
|
| Restricted Cash |
|
|
| Leased property, net |
$ 1,500
|
|