General form of registration statement for all companies including face-amount certificate companies

Goodwill and Intangible Assets - Summary Of Intangible Assets and Related Accumulated (Detail)

v3.21.2
Goodwill and Intangible Assets - Summary Of Intangible Assets and Related Accumulated (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 692.9 $ 544.2
Accumulated Amortization (366.6) (295.9)
Net Book Value 326.3 248.3
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 420.4 358.5
Accumulated Amortization (205.6) (170.5)
Net Book Value $ 214.8 $ 188.0
Customer relationships | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 6 years 6 years
Customer relationships | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 17 years 15 years
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 184.5 $ 130.0
Accumulated Amortization (104.7) (81.0)
Net Book Value $ 79.8 $ 49.0
Developed technology | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 3 years 3 years
Developed technology | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 16 years 16 years
Trade names    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 47.4 $ 32.9
Accumulated Amortization (29.5) (22.4)
Net Book Value $ 17.9 $ 10.5
Trade names | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 5 years 5 years
Trade names | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 9 years 9 years
Backlog and other    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 40.6 $ 22.8
Accumulated Amortization (26.8) (22.0)
Net Book Value $ 13.8 $ 0.8
Backlog and other | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 1 year 1 year
Backlog and other | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Original Average Life in Years 9 years 9 years