Annual report pursuant to Section 13 and 15(d)

Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on the Balance Sheet (Details)

v3.19.3.a.u2
Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on the Balance Sheet (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
contract
Dec. 31, 2018
USD ($)
contract
Designated as Hedging Instrument | Interest rate swap contracts | Other assets    
Derivatives, Fair Value [Line Items]    
Fair value, asset derivatives $ 15 $ 703
Designated as Hedging Instrument | Interest rate swap contracts | Other liabilities    
Derivatives, Fair Value [Line Items]    
Fair value, liability derivatives $ 6,210 $ 3,187
Not Designated as Hedging Instrument    
Derivatives, Fair Value [Line Items]    
Number of instruments | contract 3 4
Not Designated as Hedging Instrument | Interest rate swap contracts | Other assets    
Derivatives, Fair Value [Line Items]    
Fair value, asset derivatives $ 0 $ 30
Not Designated as Hedging Instrument | Interest rate swap contracts | Other liabilities    
Derivatives, Fair Value [Line Items]    
Fair value, liability derivatives 26 0
Not Designated as Hedging Instrument | Commodity swap contracts | Other assets    
Derivatives, Fair Value [Line Items]    
Fair value, asset derivatives 198 33
Not Designated as Hedging Instrument | Commodity swap contracts | Other liabilities    
Derivatives, Fair Value [Line Items]    
Fair value, liability derivatives 0 70
Not Designated as Hedging Instrument | Interest make-whole provisions | Other liabilities    
Derivatives, Fair Value [Line Items]    
Fair value, liability derivatives $ 918 $ 1,808