Schedule of Equity in Nonconsolidated Investment (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019
Schedule Of Equity Method Investments [Line Items]
Equity Investment, Ownership Percentage	93.80%
Equity Investment	$ 76,808	$ 76,208
Equity Investment
Schedule Of Equity Method Investments [Line Items]
Equity Investment	$ 57,700	$ 57,600
Nonconsolidated Investment \| Equity Investment \| USA
Schedule Of Equity Method Investments [Line Items]
Equity Investment, Ownership Percentage	93.80%
Equity Investment	$ 57,652

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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