Noncontrolling Interests - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2020 Facility
Noncontrolling Interest [Line Items]
Number of facilities operated by non-wholly owned subsidiaries	5
Non-Wholly Owned Subsidiaries [Member] | Minimum [Member]
Noncontrolling Interest [Line Items]
Equity ownership interests percentage in the facility	60.00%
Non-Wholly Owned Subsidiaries [Member] | Maximum [Member]
Noncontrolling Interest [Line Items]
Equity ownership interests percentage in the facility	86.00%