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Fair Value Measurements - Additional Information (Detail) - USD ($)
Mar. 31, 2021
Jun. 30, 2020
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract]    
Fair value, assets, level 1 to level 2 transfers, amount $ 0 $ 0
Fair value, assets, level 2 to level 1 transfers, amount 0 0
Fair value, liabilities, level 1 to level 2 transfers, amount 0 0
Fair value, liabilities, level 2 to level 1 transfers, amount 0 0
Fair value liabilities level 3 to level 1 transfers, amount 0 0
Fair value assets level 3 to level 1 transfers, amount $ 0 $ 0