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Financial Instruments and Fair Value Measurements - Schedule of Derivative Financial Instruments (Parenthetical) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
derivative
Dec. 31, 2018
USD ($)
Derivatives, Fair Value [Line Items]    
Fair value, liability derivatives $ (39,061) $ (7,304)
Interest Rate Swaps | Core Portfolio    
Derivatives, Fair Value [Line Items]    
Number of derivative instruments held | derivative 2  
Fair value, liability derivatives $ (11,800) $ (2,900)
Derivative Effective Date 2020-07