Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail)

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Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail) - USD ($)
Dec. 31, 2021
Jun. 30, 2021
Jun. 30, 2020
Liabilities      
Private placement warrants $ 21,200,000    
Fair Value, Recurring | Level 1      
Liabilities      
Public warrants 46,900,000 $ 0 $ 0
Private placement warrants 0 0 0
Fair Value, Recurring | Level 1 | Cash, cash equivalents, and restricted cash      
Assets      
Assets 85,300,000 102,400,000 120,000,000.0
Fair Value, Recurring | Level 1 | Discretionary retirement plan      
Assets      
Assets 3,700,000 3,400,000 2,400,000
Liabilities      
Discretionary retirement plan 3,700,000 3,400,000 2,400,000
Fair Value, Recurring | Level 2      
Liabilities      
Public warrants 0    
Private placement warrants 21,200,000    
Fair Value, Recurring | Level 2 | Cash, cash equivalents, and restricted cash      
Assets      
Assets 0 0 0
Fair Value, Recurring | Level 2 | Discretionary retirement plan      
Assets      
Assets 800,000 800,000 1,100,000
Liabilities      
Discretionary retirement plan 800,000 800,000 1,100,000
Fair Value, Recurring | Level 3      
Liabilities      
Public warrants 0    
Private placement warrants 0    
Fair Value, Recurring | Level 3 | Cash, cash equivalents, and restricted cash      
Assets      
Assets 0 0 0
Fair Value, Recurring | Level 3 | Discretionary retirement plan      
Assets      
Assets 0 0 0
Liabilities      
Discretionary retirement plan $ 0 $ 0 $ 0