Related Party Transactions - Additional Information (Detail) (SP Corporate, Management Services Agreement, USD $)	0 Months Ended
	Dec. 24, 2014
SP Corporate | Management Services Agreement
Related Party Transaction [Line Items]
Management services agreement, effective date of agreement	Jan. 01, 2015
Management services agreement, expiry date of agreement	Jun. 30, 2015
Fixed monthly fee to be paid in consideration of services	$ 175,000