Mortgage Notes Payable and Line of Credit - Summary of Long-Term Mortgages (Parenthetical) (Detail) $ in Millions	Jun. 29, 2015 USD ($)
Variable Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt instrument balloon payment to be paid	$ 19.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration