Commitments and Contingencies - Additional Information (Detail) $ in Thousands				12 Months Ended
	Apr. 15, 2014 USD ($)	Sep. 26, 2013	Dec. 14, 2011 USD ($)	Dec. 31, 2010 USD ($) claim plaintiff	Dec. 04, 2014 USD ($)
City of Santee
Loss Contingencies [Line Items]
One-time rent increase		2.50%
Annual rent increase, percentage of CPI		100.00%
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
Number of claims settled | claim				6
Number of plaintiffs | plaintiff				72
Number of dismissed claims | plaintiff				66
Number of claims dismissed and not appealed | plaintiff				3
Colony Park | Maximum
Loss Contingencies [Line Items]
Jury imposed compensatory damages				$ 44
Colony Park | Attorney Fees
Loss Contingencies [Line Items]
Compensatory damages sought			$ 2,000
Compensatory Damages
Loss Contingencies [Line Items]
Damages awarded	$ 15,300
Damages sought but overturned					$ 15,300
Punitive Damages
Loss Contingencies [Line Items]
Damages awarded	$ 95,800
Damages sought but overturned					$ 95,800