FAIR VALUE DISCLOSURES (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Other assets - Cash Flow Hedge Swap Agreements	$ 9,687
Other liabilities - Cash Flow Hedge Swap Agreements	5,037	15,228
Transfers of assets and liabilities between Level 1 and Level 2	0
Recurring basis | Estimated Fair Value
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Other assets - Cash Flow Hedge Swap Agreements	9,687
Other liabilities - Cash Flow Hedge Swap Agreements	(5,037)
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Other assets - Cash Flow Hedge Swap Agreements	9,687
Other liabilities - Cash Flow Hedge Swap Agreements	$ (5,037)