Share Based Payments - Schedule of Shares Issued as Purchase Consideration with Forfeiture Provisions (Detail)	12 Months Ended
	Jun. 30, 2020 $ / shares shares
Nonvested Restricted Stock Activity
Awards outstanding beginning balance (in shares) | shares	2,366,000
Issuance of purchase consideration shares with forfeiture provisions (in shares) | shares	1,054,000
Lapse of forfeiture provisions (in shares) | shares	(1,085,000)
Shares forfeited (in shares) | shares	(123,000)
Awards outstanding ending balance (in shares) | shares	2,212,000
Weighted Average Grant Date Fair Value
Awards outstanding beginning balance (in dollars per share) | $ / shares	$ 41.72
Issuance of purchase consideration shares with forfeiture provisions (in dollars per share) | $ / shares	44.88
Lapse of forfeiture provisions (in dollars per share) | $ / shares	39.10
Shares forfeited (in dollars per share) | $ / shares	45.86
Awards outstanding ending balance (in dollars per share) | $ / shares	$ 44.25
Equity Acquisition Activity
Nonvested Restricted Stock Activity
Awards outstanding beginning balance (in shares) | shares	99,000
Issuance of purchase consideration shares with forfeiture provisions (in shares) | shares	0
Lapse of forfeiture provisions (in shares) | shares	(54,000)
Shares forfeited (in shares) | shares	(43,000)
Awards outstanding ending balance (in shares) | shares	2,000
Weighted Average Grant Date Fair Value
Awards outstanding beginning balance (in dollars per share) | $ / shares	$ 30.97
Issuance of purchase consideration shares with forfeiture provisions (in dollars per share) | $ / shares	0
Lapse of forfeiture provisions (in dollars per share) | $ / shares	22.70
Shares forfeited (in dollars per share) | $ / shares	41.20
Awards outstanding ending balance (in dollars per share) | $ / shares	$ 32.76