Derivative Instruments - Schedule of Offsetting Derivative Asset and Liability Positions (Details) - Counterparty A - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 8,990	$ 4,643
Derivative asset, netting adjustment	(222)	(23)
Derivative asset, cash collateral posted	0	0
Derivative asset, net	8,768	4,620
Derivative liability, fair value	3,055	3,208
Derivative liability, netting adjustment	(222)	(23)
Derivative liability, cash collateral posted	0	0
Derivative liability, net	$ 2,833	$ 3,185