Related Party Transactions - Additional Information (Detail) - SP Corporate [Member] - USD ($)			3 Months Ended	9 Months Ended
	May. 01, 2015	May. 01, 2014	Sep. 30, 2015	Sep. 30, 2015
Related Party Transaction [Line Items]
Management Services Agreement, effective date				May 01, 2014
Management Services Agreement, monthly fee		$ 10,400	$ 10,400
Management Services Agreement, term		1 year
Management Services Agreement, monthly fee	$ 27,400
Amendment effective date				May 01, 2015