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