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Basis of Presentation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Accounting Policies [Abstract]
Net gain (loss) on foreign currency transactions	$ 0.4	$ (0.4)
Purchase price included in cash	2.5
Purchase price in contingent consideration	6.5
Assets acquired accrued Contingent Consideration	1.3
Research and development expenses	3.7
Liabilities recorded in acquisition	$ 1.5
Period for amount payable upon meeting milestones	December 2021 through December 2023
Long-term deferred tax asset	$ 0.3

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The amount of liabilities recognized recorded in a transaction with the acquiree for each transaction that is recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

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