Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

v3.19.1
Fair Value Measurements (Details 2) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Assets:    
Marketable securities in deferred compensation plan $ 4,214 $ 3,868
Fair value measurement on a recurring basis    
Assets:    
Interest rate derivatives 2,602  
Total assets 6,816  
Liabilities:    
Deferred compensation plan liability 4,214  
Interest rate derivatives 11,894  
Total liabilities 16,108  
Fair value measurement on a recurring basis | Mutual funds    
Assets:    
Marketable securities in deferred compensation plan 4,171  
Fair value measurement on a recurring basis | Other    
Assets:    
Marketable securities in deferred compensation plan 43  
Fair value measurement on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets:    
Total assets 4,214  
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 4,171  
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 43  
Fair value measurement on a recurring basis | Significant Other Observable Inputs (Level 2)    
Assets:    
Interest rate derivatives 2,602  
Total assets 2,602  
Liabilities:    
Deferred compensation plan liability 4,214  
Interest rate derivatives 11,894  
Total liabilities 16,108  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P.    
Assets:    
Interest rate derivatives 2,602  
Liabilities:    
Interest rate derivatives 11,894  
Fair value measurement on a recurring basis | Corporate Office Properties, L.P. | Significant Other Observable Inputs (Level 2)    
Assets:    
Interest rate derivatives 2,602  
Liabilities:    
Interest rate derivatives $ 11,894