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Derivative Instruments (Tables)
6 Months Ended
Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Interest Rate Swaps
The terms and notional values of our derivative instruments were as follows as of June 30, 2021:
(dollars in thousands)Term of derivative instrumentNotional
value
Derivative instruments designated as hedging instruments:
Interest rate swapJuly 2017 - July 2021$150,000 
Interest rate swapNovember 2020 - October 202460,000 
Interest rate swapNovember 2020 - October 202460,000 
Interest rate swapJune 2021 - October 2024120,000 
$390,000 
Forward-starting interest rate swapJuly 2021 - October 2024120,000 
$120,000 
Fair Values of Derivative Instruments
The fair values of our derivative instruments were as follows as of:
Asset derivativesLiability derivatives
(dollars in thousands)Balance sheet locationJune 30,
2021
December 31,
2020
Balance sheet locationJune 30,
2021
December 31,
2020
Derivative instruments designated as hedging instruments:
Interest rate swaps, current portionPrepaid expenses
and other
current assets
$— $— Accrued expenses
and other
current liabilities
$138 $2,698 
Interest rate swaps, long-term portionOther assets2,061 — Other liabilities— 1,461 
Total derivative instruments designated as hedging instruments$2,061 $— $138 $4,159 
Effects of Derivative Instruments in Cash Flow Hedging Relationships
The effects of derivative instruments in cash flow hedging relationships were as follows:
Gain (loss) recognized
in accumulated other
comprehensive
loss as of
Location
of gain (loss)
reclassified from
accumulated other
comprehensive
loss into income
Gain (loss) reclassified from accumulated
 other comprehensive loss into income
(dollars in thousands)June 30,
2021
Three months ended
June 30, 2021
Six months ended
June 30, 2021
Interest rate swaps$1,923 Interest expense$(1,408)$(2,784)
June 30,
2020
Three months ended
June 30, 2020
Six months ended
June 30, 2020
Interest rate swaps$(5,233)Interest expense$(1,018)$(1,223)