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Leases (Tables) | 6 Months Ended
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Jun. 30, 2020
Leases |
Schedule of operating and finance lease right-of-use assets and related lease obligations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | June 30, | ​ | December 31, | ​
Leases | Classification | ​ | 2020 |  | 2019 |
Assets | ​ | ​ | (in thousands) | ​
Operating lease | Operating lease assets | ​ | $ | 5,033 | ​ | $ | 5,849 | ​
Finance lease | Finance lease assets * | ​ |  | 21,200 | ​ |  | 21,880 | ​
Total leased assets | ​ | ​ | $ | 26,233 | ​ | $ | 27,729 | ​
Liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating | Other current liabilities | ​ | $ | 2,989 | ​ | $ | 3,144 | ​
Finance | Current portion of finance lease obligation | ​ | ​ | 654 | ​ | ​ | 399 | ​
Noncurrent | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating | Other long-term liabilities | ​ | ​ | 2,035 | ​ | ​ | 2,553 | ​
Finance | Finance lease obligation | ​ |  | 47,787 | ​ |  | 48,149 | ​
Total lease liabilities | ​ | ​ | $ | 53,465 | ​ | $ | 54,245 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* Finance lease assets are recorded net of accumulated depreciation of $47.9 million and include $0.7 million of prepaid financing costs as of June 30, 2020. Finance lease assets are recorded net of accumulated depreciation of $47.4 million and include $0.7 million of prepaid financing costs as of December 31, 2019. ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of lease costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three months ended | ​ | Six months ended |  | ​
​ | ​ | ​ | June 30, | ​ | June 30, | ​ | ​
Lease cost | Classification | ​ | 2020 |  | 2019 |  | 2020 |  | 2019 |  | ​
Operating lease cost | ​ | ​ | (in thousands) |  | ​
Service | Cost of revenue | ​ | $ | 624 | ​ | $ | 583 | ​ | $ | 1,174 | ​ | $ | 1,180 | ​ | ​
Research and development | Operating expenses | ​ |  | 128 | ​ |  | 86 | ​ |  | 209 | ​ |  | 152 | ​ | ​
Sales and marketing* | Operating expenses | ​ |  | 346 | ​ |  | 345 | ​ |  | 678 | ​ |  | 699 | ​ | ​
General and administrative* | Operating expenses | ​ |  | 220 | ​ |  | 193 | ​ |  | 435 | ​ |  | 402 | ​ | ​
Total operating lease cost | ​ | ​ | $ | 1,318 | ​ | $ | 1,207 | ​ | $ | 2,496 | ​ | $ | 2,433 | ​ | ​
Finance lease cost | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Depreciation of leased assets | Cost of revenue, R&D, Sales and marketing and G&A | ​ | $ | 328 | ​ | $ | 332 | ​ | $ | 681 | ​ | $ | 665 | ​ | ​
Interest on lease liabilities | Interest expense | ​ |  | 1,299 | ​ |  | 1,311 | ​ |  | 2,602 | ​ |  | 2,541 | ​ | ​
Total finance lease cost | ​ | ​ | $ | 1,627 | ​ | $ | 1,643 | ​ | $ | 3,283 | ​ | $ | 3,206 | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total lease cost | ​ | ​ | $ | 2,945 | ​ | $ | 2,850 | ​ | $ | 5,779 | ​ | $ | 5,639 | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* Sales and marketing, general and administrative expense includes short-term lease and variable lease costs of approximately $0.3 million and $0.5 million for the three and six months ended June 30, 2020, respectively and includes short-term lease and variable lease costs of approximately $0.2 million and $0.4 million for the three and six months ended June 30, 2019, respectively. | ​ | ​
Schedule of future minimum operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Finance | ​ | Operating |  | Total
Maturity of Lease Liabilities | ​ | Leases | ​ | Leases | ​ | Leases
​ | ​ | (in thousands)
2020 | ​ | $ | 2,865 | ​ | $ | 1,843 | ​ | $ | 4,708
2021 | ​ |  | 5,848 | ​ |  | 2,242 | ​ |  | 8,090
2022 | ​ |  | 5,980 | ​ |  | 945 | ​ |  | 6,925
2023 | ​ |  | 6,114 | ​ |  | 219 | ​ |  | 6,333
2024 | ​ | ​ | 6,252 | ​ | ​ | 86 | ​ | ​ | 6,338
Thereafter | ​ | ​ | 79,653 | ​ | ​ | 210 | ​ | ​ | 79,863
Total lease payments | ​ | $ | 106,712 | ​ | $ | 5,545 | ​ | $ | 112,257
Less interest portion* | ​ | ​ | (58,271) | ​ | ​ | (521) | ​ | ​ | (58,792)
Finance lease and operating lease obligations | ​ | $ | 48,441 | ​ | $ | 5,024 | ​ | $ | 53,465
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* Finance lease interest calculated using the implied interest rate; operating lease interest calculated using estimated corporate borrowing rate.
Schedule of weighted-average remaining lease term and discount rates | ​
​ | ​ | ​ | ​
​ | ​ | June 30,
Lease term and discount rate |  | 2020
Weighted-average remaining lease term (years): | ​ | ​ | ​
Operating leases | ​ | ​ | 1.7
Finance leases | ​ |  | 16.6
Weighted-average discount rate: | ​ | ​ | ​
Operating leases | ​ |  | 4.5%
Finance leases | ​ |  | 10.5%
​ | ​ | ​ | ​
Schedule of cash outflows by lease type | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended | ​
​ | ​ | June 30, | ​
Cash paid for amounts included in the measurement of lease liabilities |  | 2020 | ​ | 2019 | ​
​ | ​ | (in thousands) | ​
Operating cash outflows from operating leases | ​ | $ | 2,496 | ​ | $ | 2,433 | ​
Operating cash outflows from finance leases | ​ |  | 2,746 | ​ |  | 2,792 | ​
Financing cash outflows from finance leases | ​ | ​ | 108 | ​ | ​ | — | ​
Operating lease assets obtained in exchange for operating lease liabilities | ​ |  | 1,038 | ​ |  | 6,431 | ​
Finance lease assets obtained in exchange for new finance lease liabilities | ​ | $ | — | ​ | $ | — | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of future minimum operating and finance leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Finance | ​ | Operating |  | Total
Maturity of Lease Liabilities | ​ | Leases | ​ | Leases | ​ | Leases
​ | ​ | (in thousands)
2020 | ​ | $ | 2,865 | ​ | $ | 1,843 | ​ | $ | 4,708
2021 | ​ |  | 5,848 | ​ |  | 2,242 | ​ |  | 8,090
2022 | ​ |  | 5,980 | ​ |  | 945 | ​ |  | 6,925
2023 | ​ |  | 6,114 | ​ |  | 219 | ​ |  | 6,333
2024 | ​ | ​ | 6,252 | ​ | ​ | 86 | ​ | ​ | 6,338
Thereafter | ​ | ​ | 79,653 | ​ | ​ | 210 | ​ | ​ | 79,863
Total lease payments | ​ | $ | 106,712 | ​ | $ | 5,545 | ​ | $ | 112,257
Less interest portion* | ​ | ​ | (58,271) | ​ | ​ | (521) | ​ | ​ | (58,792)
Finance lease and operating lease obligations | ​ | $ | 48,441 | ​ | $ | 5,024 | ​ | $ | 53,465
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* Finance lease interest calculated using the implied interest rate; operating lease interest calculated using estimated corporate borrowing rate.

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