Commitments and Contingencies - Additional Information (Detail) € in Millions, $ in Millions				5 Months Ended
	Jun. 06, 2018 EUR (€) Hospital	Jan. 30, 2017 EUR (€)	Sep. 28, 2016 USD ($)	Jan. 30, 2017 EUR (€) Hospital
Washington and Idaho [Member] | Acute Care Hospital [Member]
Commitment And Contingencies [Line Items]
Purchase price of acquisition | $			$ 17.5
Germany [Member] | Acute Care Hospital [Member]
Commitment And Contingencies [Line Items]
Purchase price of acquisition	€ 23.0
Germany [Member] | Rehabilitation Hospitals [Member]
Commitment And Contingencies [Line Items]
Purchase price of acquisition		€ 8.4		€ 44.1
Number of facilities acquired | Hospital	4			6
Germany [Member] | Rehabilitation Hospitals [Member] | MEDIAN [Member]
Commitment And Contingencies [Line Items]
Term of lease, years	27 years
Lease rent increase percentage	70.00%
Lease rate	1.00%