Asset Sale - Additional Information (Detail) $ in Thousands		3 Months Ended		9 Months Ended
	Oct. 11, 2018 USD ($) a	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)
Asset Sale [Line Items]
Proceeds from sale				$ 6,899	$ 0
Pre-tax gain on the sale of property		$ 0	$ 183	454	$ 181
Medical Office Building And Undeveloped Land [Member]
Asset Sale [Line Items]
Undeveloped land sold | a	2
Proceeds from sale	$ 935
Pre-tax gain on the sale of property				$ 452