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Leases (Tables) | 6 Months Ended
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Jun. 30, 2021
Leases |
Schedule of information pertaining to operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​ | ​
(Dollars in thousands) | ​ | June 30, | ​ | June 30, |  | ​
​ |  | 2021 | 2020 |  | 2021 | 2020 |  |
Lease Cost Components: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of ROU assets - finance leases | ​ | $ | 117 | ​ | $ | 47 | ​ | $ | 233 | ​ | $ | 47 | ​ | ​
Interest on lease liabilities - finance leases | ​ | ​ | 14 | ​ | ​ | 5 | ​ | ​ | 29 | ​ | ​ | 5 | ​ | ​
Operating lease cost (cost resulting from lease payments) | ​ | ​ | 4,342 | ​ | ​ | 3,058 | ​ | ​ | 8,685 | ​ | ​ | 5,316 | ​ | ​
Short-term lease cost | ​ | ​ | 75 | ​ | ​ | 99 | ​ | ​ | 211 | ​ | ​ | 197 | ​ | ​
Variable lease cost (cost excluded from lease payments) | ​ |  | 643 | ​ |  | 203 | ​ |  | 1,291 | ​ |  | 369 | ​ | ​
Total lease cost | ​ | $ | 5,191 | ​ | $ | 3,412 | ​ | $ | 10,449 | ​ | $ | 5,934 | ​ | ​
Supplemental Cash Flow and Other Information Related to Leases: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Finance lease - operating cash flows | ​ | $ | 14 | ​ | $ | 8 | ​ | $ | 29 | ​ | $ | 8 | ​ | ​
Finance lease - financing cash flows | ​ | ​ | 106 | ​ | ​ | 40 | ​ | ​ | 213 | ​ | ​ | 40 | ​ | ​
Operating lease - operating cash flows (fixed payments) | ​ | ​ | 4,173 | ​ | ​ | 2,784 | ​ | ​ | 8,313 | ​ | ​ | 4,456 | ​ | ​
Operating lease - operating cash flows (net change asset/liability) | ​ | ​ | (3,255) | ​ | ​ | (2,409) | ​ | ​ | (6,475) | ​ | ​ | (2,678) | ​ | ​
New ROU assets - operating leases | ​ | ​ | — | ​ | ​ | 39,278 | ​ | ​ | 1,298 | ​ | ​ | 39,736 | ​ | ​
New ROU assets - finance leases | ​ | ​ | — | ​ | ​ | 5,374 | ​ | ​ | — | ​ | ​ | 5,374 | ​ | ​
Weighted - average remaining lease term (years) - finance leases | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 6.91 | ​ | ​ | 10.63 | ​ | ​
Weighted - average remaining lease term (years) - operating leases | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | 11.14 | ​ |  | 11.81 | ​ | ​
Weighted - average discount rate - finance leases | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 1.7% | ​ | ​ | 1.9% | ​ | ​
Weighted - average discount rate - operating leases | ​ |  | ​ | ​ |  | ​ | ​ |  | 3.3% | ​ |  | 3.3% | ​ | ​
​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​
Operating lease payments due: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
2021 (excluding the six months ended June 30, 2021) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 8,045 | ​ | ​ | ​ | ​ | ​
2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 14,992 | ​ | ​ | ​ | ​ | ​
2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 14,290 | ​ | ​ | ​ | ​ | ​
2024 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 12,552 | ​ | ​ | ​ | ​ | ​
2025 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 11,016 | ​ | ​ | ​ | ​ | ​
Thereafter | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 79,220 | ​ | ​ | ​ | ​ | ​
Total undiscounted cash flows | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 140,115 | ​ | ​ | ​ | ​ | ​
Discount on cash flows | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (25,366) | ​ | ​ | ​ | ​ | ​
Total operating lease liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 114,749 | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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- References No definition available. + Details
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