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Other Long Term Liabilities - Additional Information (Detail) $ in Millions	Dec. 31, 2019 USD ($) plan	Jun. 30, 2019 USD ($)
Other Long Term Liabilities [Line Items]
Number of defined benefit pension plans | plan	2
Fair value of plan assets	$ 0.1
Net pension liability		$ 6.8
Disposal Group, Held-for-sale [Member]
Other Long Term Liabilities [Line Items]
Net pension liability	$ 7.1

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- Definition

Number of defined benefit pension plans.

+ References

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- Definition

Other long term liabilities.

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

+ References

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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