Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

v3.20.1
Fair Value Measurements (Details 2) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Assets:    
Marketable securities in deferred compensation plan $ 2,279 $ 3,060
Fair value measurement on a recurring basis    
Assets:    
Total assets 2,289  
Liabilities:    
Deferred compensation plan liability 2,279  
Interest rate derivatives 63,232  
Total liabilities 65,511  
Fair value measurement on a recurring basis | Mutual funds    
Assets:    
Marketable securities in deferred compensation plan 2,260  
Mutual funds 10  
Fair value measurement on a recurring basis | Other    
Assets:    
Marketable securities in deferred compensation plan 19  
Fair value measurement on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets:    
Total assets 2,289  
Liabilities:    
Deferred compensation plan liability 0  
Interest rate derivatives 0  
Total liabilities 0  
Fair value measurement on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds    
Assets:    
Marketable securities in deferred compensation plan 2,260  
Mutual funds 10  
Fair value measurement on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other    
Assets:    
Marketable securities in deferred compensation plan 19  
Fair value measurement on a recurring basis | Significant Other Observable Inputs (Level 2)    
Assets:    
Total assets 0  
Liabilities:    
Deferred compensation plan liability 2,279  
Interest rate derivatives 63,232  
Total liabilities 65,511  
Fair value measurement on a recurring basis | Significant Other Observable Inputs (Level 2) | Mutual funds    
Assets:    
Marketable securities in deferred compensation plan 0  
Mutual funds 0  
Fair value measurement on a recurring basis | Significant Other Observable Inputs (Level 2) | Other    
Assets:    
Marketable securities in deferred compensation plan 0  
Fair value measurement on a recurring basis | Significant Unobservable Inputs (Level 3)    
Assets:    
Total assets 0  
Liabilities:    
Deferred compensation plan liability 0  
Interest rate derivatives 0  
Total liabilities 0  
Fair value measurement on a recurring basis | Significant Unobservable Inputs (Level 3) | Mutual funds    
Assets:    
Marketable securities in deferred compensation plan 0  
Mutual funds 0  
Fair value measurement on a recurring basis | Significant Unobservable Inputs (Level 3) | Other    
Assets:    
Marketable securities in deferred compensation plan 0  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P.    
Liabilities:    
Interest rate derivatives 63,232  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Mutual funds    
Assets:    
Mutual funds 10  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Liabilities:    
Interest rate derivatives 0  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds    
Assets:    
Mutual funds 10  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Significant Other Observable Inputs (Level 2)    
Liabilities:    
Interest rate derivatives 63,232  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Significant Other Observable Inputs (Level 2) | Mutual funds    
Assets:    
Mutual funds 0  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Significant Unobservable Inputs (Level 3)    
Liabilities:    
Interest rate derivatives 0  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Significant Unobservable Inputs (Level 3) | Mutual funds    
Assets:    
Mutual funds $ 0