Commitments and Contingencies - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended	0 Months Ended	1 Months Ended		6 Months Ended
	Jul. 31, 2013	Dec. 31, 2014	Sep. 30, 2013	Dec. 31, 2010 integer	Apr. 15, 2014	Aug. 30, 2013	Apr. 30, 2013	Jun. 30, 2009
San Rafael [Member] [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Paid, Value	$ 1,270,000	$ 1,400,000
City of Santee [Member]
Loss Contingencies [Line Items]
Litigation Settlement, One-Time Rent Increase			3.00%
Litigation Settlement, Annual Rent Increase, Percentage of CPI			100.00%
Litigation Settlement, Rent Increase Upon Turnover of Site			10.00%
Annual Rent Increase, Percentage of CPI, Prior to Settlement			70.00%
Colony Park
Loss Contingencies [Line Items]
Loss Contingency Damages Sought By Plaintiff				6,800,000
Number of plaintiff the jury rendered verdicts				6
Loss Contingency, Number of Plaintiffs				72
Loss Contingency, Claims Dismissed, Number				66
Number of plaintiffs dismissed and not appealed				3
Colony Park | Maximum
Loss Contingencies [Line Items]
Loss awarded to plaintiffs				44,000
Compensatory Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value					15,300,000
Punitive Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value					95,800,000
California Hawaiian [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Minimum		0
Attorney Fees | San Rafael [Member] [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value							1,250,000
Loss Contingency, Damages Paid, Value						80,000
Attorney Fees | Colony Park
Loss Contingencies [Line Items]
Award for costs and attorney fee claimed by the company				2,000,000
Settled Litigation [Member] | Attorney Fees | Legal Claim One [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value								$ 2,100,000
Expiration period of Ordinance from June 30, 2009 date of judgment								10 years