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Leases (Tables) | 9 Months Ended
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Sep. 30, 2021
Leases |
Summary of income relating to lease payments and undiscounted cash flows | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Income relating to lease payments: | ​ | ​
​ | ​ | Nine Months Ended
(in thousands) |  | September 30, 2021 |  | September 30, 2020
Income from leases (1) | ​ | $ | 161,443 | ​ | $ | 181,929
​ | ​ | $ | 161,443 | ​ | $ | 181,929
​ | ​ | ​ | ​ | ​ | ​ | ​
(1) Amounts recognized from variable lease payments were $42,298 and $45,281 for the nine months ended September 30, 2021 and 2020, respectively. | ​ | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of components of income from operating lease and maturity of undiscounted cash flows to be received by lessor on annual basis for operating lease. + References No definition available. + Details
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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
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