LONG-TERM OBLIGATIONS - Other Long-term Debt by Type of Trust (Details) (USD $)
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12 Months Ended | |||||||||||
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Dec. 31, 2013
Rate
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Dec. 31, 2012
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Debt Instrument [Line Items] | ||||||||||||
Other Long-term Debt | $ 60,311,000 | $ 60,311,000 | ||||||||||
Option fee, fair value | 0 | 0 | ||||||||||
Magnolia Trust Company I
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Debt Instrument [Line Items] | ||||||||||||
Other Long-term Debt | 3,609,000 | [1] | 3,609,000 | [1] | ||||||||
Debt maturity dates | 2035 | |||||||||||
Adjusted rate of debt | 2.0376% | |||||||||||
Date of interest rate adjustment | February 23, 2014 | |||||||||||
Debt instrument, description of variable rate basis | three-month LIBOR plus 180 basis points | |||||||||||
Magnolia Trust Company I | LIBOR
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Debt Instrument [Line Items] | ||||||||||||
Basis spread on variable rate | 1.80% | |||||||||||
Southside Statutory Trust V
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Debt Instrument [Line Items] | ||||||||||||
Other Long-term Debt | 12,887,000 | [2] | 12,887,000 | [2] | ||||||||
Debt maturity dates | 2037 | |||||||||||
Adjusted rate of debt | 2.49285% | |||||||||||
Date of interest rate adjustment | March 16, 2014 | |||||||||||
Debt instrument, description of variable rate basis | three-month LIBOR plus 225 basis points | |||||||||||
Southside Statutory Trust V | LIBOR
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Debt Instrument [Line Items] | ||||||||||||
Basis spread on variable rate | 2.25% | |||||||||||
Southside Statutory Trust IV
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Debt Instrument [Line Items] | ||||||||||||
Other Long-term Debt | 23,196,000 | [3] | 23,196,000 | [3] | ||||||||
Debt maturity dates | 2037 | |||||||||||
Adjusted rate of debt | 1.53585% | |||||||||||
Date of interest rate adjustment | January 29, 2014 | |||||||||||
Debt instrument, description of variable rate basis | three-month LIBOR plus 130 basis points | |||||||||||
Southside Statutory Trust IV | LIBOR
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Debt Instrument [Line Items] | ||||||||||||
Basis spread on variable rate | 1.30% | |||||||||||
Southside Statutory Trust III
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Debt Instrument [Line Items] | ||||||||||||
Other Long-term Debt | $ 20,619,000 | [4] | $ 20,619,000 | [4] | ||||||||
Debt maturity dates | 2033 | |||||||||||
Adjusted rate of debt | 3.1866% | |||||||||||
Date of interest rate adjustment | March 30, 2014 | |||||||||||
Debt instrument, description of variable rate basis | three-month LIBOR plus 294 basis points | |||||||||||
Southside Statutory Trust III | LIBOR
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Debt Instrument [Line Items] | ||||||||||||
Basis spread on variable rate | 2.94% | |||||||||||
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