Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands |
|
12 Months Ended |
Jan. 01, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
| Summary of Significant Accounting Policies |
|
|
|
|
| Sale/leaseback revenue and gross profit |
$ 16,400
|
|
|
|
| Decrease of depreciation expenses |
300
|
$ 11,014
|
$ 9,190
|
$ 4,650
|
| Decrease in accrued expenses |
|
7,864
|
10,595
|
|
| Recognition of finance obligation |
|
(70,915)
|
|
|
| Decrease in prepaid expenses and other assets |
|
(4,654)
|
2,157
|
$ (2,386)
|
| Decrease in leased property, net of accumulated depreciation |
|
(146,751)
|
(87,065)
|
|
| Increase in accumulated deficit |
|
(1,260,290)
|
$ (1,178,636)
|
|
| ASU 2016-02 | Restatement adjustment |
|
|
|
|
| Summary of Significant Accounting Policies |
|
|
|
|
| Decrease in leased property, net of accumulated depreciation |
|
$ (1,500)
|
|
|
| ASU 2016-02 | Early adoption | Restatement adjustment |
|
|
|
|
| Summary of Significant Accounting Policies |
|
|
|
|
| Recognition of right of use asset |
34,416
|
|
|
|
| Decrease in accrued expenses |
385
|
|
|
|
| Recognition of finance obligation |
(34,161)
|
|
|
|
| Decrease in prepaid expenses and other assets |
(3,229)
|
|
|
|
| Decrease in leased property, net of accumulated depreciation |
(563)
|
|
|
|
| Increase in accumulated deficit |
$ 3,487
|
|
|
|