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Derivative Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of Aggregate Amount and Estimated Net Fair Values of Our Derivative Instruments
The following table summarizes the aggregate notional amounts and estimated net fair values of our derivative instruments as of June 30, 2022 and December 31, 2021:
As of June 30, 2022As of December 31, 2021
Notional Fair Value of
Assets
Fair Value of
Liabilities
Notional Fair Value of
Assets
Fair Value of
Liabilities
Cash flow hedges:
Interest rate swap$300,000 $16,864 — $150,000 $2,488 $6,463 
Interest rate collars250,000 4,298 — 250,000 — 5,433 
Total$550,000 $21,162 — $400,000 $2,488 $11,896