Fair Value Measurements - Schedule of Fair Value of Assets Measured on Non-recurring Basis and Related Impairment Charges (Parenthetical) (Detail) - Hotel			3 Months Ended				6 Months Ended
	Dec. 31, 2015	Feb. 06, 2014	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2013	Dec. 31, 2013
Fair Value Disclosures [Abstract]
Number of hotels sold		4	11		1		40
Number of hotels held for sale	13		13	24		44