Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments - Summary of Activity in AOCI Related to Derivatives (Detail)

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Derivative Financial Instruments - Summary of Activity in AOCI Related to Derivatives (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Derivative Instruments And Hedging Activities Disclosure [Abstract]      
Derivative Balance at the Beginning of the Year in AOCI $ (142) $ (256) $ (338)
Net Deferral in AOCI of Derivatives:      
Net (Increase) Decrease in Fair Value of Derivatives 2 (34) (171)
Tax Effect   14 61
Net Deferral in AOCI of Derivatives 2 (20) (110)
Net Reclassification from AOCI into Earnings:      
Reclassification from AOCI into Earnings - Interest Expense 109 209 298
Tax Effect (38) (75) (106)
Net Reclassification from AOCI into Earnings 71 134 192
Mark to Market Adjustments for Derivatives 73 114 82
Derivative Balance at the End of the Year in AOCI $ (69) $ (142) $ (256)