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Fair Value Measurements - Schedule of Fair Values of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable securities (included in "other assets") | $ 21,639,000 | $ 22,660,000
Interest rate swap assets (included in "other assets") |  | 16,859,000
Total assets | 21,639,000 | 39,519,000
Interest rate swap liabilities (included in "other liabilities") |  | 48,000
Total liabilities |  | 48,000
Level 1 [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable securities (included in "other assets") | 21,639,000 | 22,660,000
Total assets | $ 21,639,000 | 22,660,000
Level 2 [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Interest rate swap assets (included in "other assets") |  | 16,859,000
Total assets |  | 16,859,000
Interest rate swap liabilities (included in "other liabilities") |  | 48,000
Total liabilities |  | $ 48,000

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- Definition Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets. + References No definition available. + Details
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