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Leases - Additional Information (Detail)	3 Months Ended
	Sep. 30, 2019 USD ($)
Leases [Abstract]
Operating lease, right-of-use asset	$ 16,400,000
Operating lease, liability	$ 16,936,000
Weighted average remaining lease term for operating leases	8 years 8 months 15 days
Operating lease, weighted average discount rate	2.58%
Operating Lease, Cost	$ 1,100,000
Net rent expense	$ 757,000

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- References

No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
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-Section 50
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Present value of lessee's discounted obligation for lease payments from operating lease.

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-SubTopic 20
-Section 45
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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-Publisher FASB
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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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