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The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

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Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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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.

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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Mar. 09, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jul. 01, 2015	Jul. 01, 2014
Related Party Transaction [Line Items]
Total rental income		$ 63,552	$ 58,793	$ 126,305	$ 119,275
Investment in WBW CHP LLC (in percent)				47.70%
WBW CHP LLC
Related Party Transaction [Line Items]
Amount Recovered For Reimbursements Of Operating Expense For Related Party				$ 400	500
Common Shares
Related Party Transaction [Line Items]
Common shares issued (in shares)				1,345,926
ICW Inc \| Board of Directors Chairman
Related Party Transaction [Line Items]
Total rental income				$ 1,100	$ 1,100
Prepaid Insurance						$ 200	$ 400
Percentage of ownership interests classified as noncontrolling		33.70%		33.70%
ICW Inc \| Common Shares \| Board of Directors Chairman
Related Party Transaction [Line Items]
Percentage of ownership interests classified as noncontrolling		10.10%		10.10%
ICW Inc \| Member Units \| Board of Directors Chairman
Related Party Transaction [Line Items]
Percentage of ownership interests classified as noncontrolling		23.70%		23.70%
Explorer Insurance Company \| Private Placement \| Board of Directors Chairman
Related Party Transaction [Line Items]
Common shares issued (in shares)	200,000
Share price (in dollars per share)	$ 40.54
Gross proceeds from issuance of common stock	$ 8,100