Derivative Instruments - Fair Value of Derivative Instruments on the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Designated as Cash Flow Hedges | Short-term Investments | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 7,000	$ 3,823
Designated as Cash Flow Hedges | Long-term Derivative Assets | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	192	292
Designated as Cash Flow Hedges | Short-Term Derivative Liabilities | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	68	20
Designated as Cash Flow Hedges | Long-term derivative liabilities | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	10	0
Not Designated as Hedging Instrument | Short-term Investments
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1,798	528
Not Designated as Hedging Instrument | Long-term Derivative Assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	0	0
Not Designated as Hedging Instrument | Short-Term Derivative Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	143	3
Not Designated as Hedging Instrument | Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0	0
Interest Rate Swap | Designated as Cash Flow Hedges | Short-Term Derivative Liabilities | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0	0
Interest Rate Swap | Designated as Cash Flow Hedges | Long-term derivative liabilities | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0	0
Interest Rate Swap | Not Designated as Hedging Instrument | Short-Term Derivative Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	1,518	1,532
Interest Rate Swap | Not Designated as Hedging Instrument | Long-term derivative liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 1,316	$ 1,653