Planned Reverse Morris Trust Transaction - Additional Information (Detail) - Vistana Signature Experiences Inc [Member]	Oct. 27, 2015 Property
Restructuring Cost and Reserve [Line Items]
Number of owned properties transfer to new entity	5
Subsidiary cumulative percentage ownership after all transactions	55.00%
ILG [Member]
Restructuring Cost and Reserve [Line Items]
Subsidiary cumulative percentage ownership after all transactions	45.00%