Amount recovered for reimbursements of operating expense for related party.

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Percentage of investment in related party.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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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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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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RELATED PARTY TRANSACTIONS (Details) (USD $)	3 Months Ended		0 Months Ended
RELATED PARTY TRANSACTIONS (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Mar. 09, 2015	Sep. 12, 2014	Jul. 01, 2014
Related Party Transaction [Line Items]
Total rental income	$ 62,753,000	$ 60,482,000
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	200,000	200,000
Common Shares
Related Party Transaction [Line Items]
Common shares issued (in shares)	253,800
ICW Inc \| Board of Directors Chairman
Related Party Transaction [Line Items]
Total rental income	600,000	500,000
Prepaid Insurance					400,000
Percentage of ownership interests classified as noncontrolling	34.10%
ICW Inc \| Private Placement \| Board of Directors Chairman
Related Party Transaction [Line Items]
Common shares issued (in shares)			200,000	400,000
Share price (in dollars per share)			$ 40.54	$ 33.76
Gross proceeds from issuance of common stock			8,100,000	13,500,000
ICW Inc \| Common Shares \| Board of Directors Chairman
Related Party Transaction [Line Items]
Percentage of ownership interests classified as noncontrolling	10.10%
ICW Inc \| Member Units \| Board of Directors Chairman
Related Party Transaction [Line Items]
Percentage of ownership interests classified as noncontrolling	24.10%
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			$ 8,100,000