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Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2013
Derivative Instrument Detail [Abstract]  
Fair Value, by Balance Sheet Grouping
The following table presents the estimated fair values of our financial instruments as of the balance sheet dates:
 
 
March 31, 2013
 
December 31, 2012
(Dollars in thousands)
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
Cash and short-term investments (Level 1)
$
59,717

 
$
59,717

 
$
80,062

 
$
80,062

Net derivative asset related to interest rate swaps (Level 2)
2,706

 
2,706

 
2,952

 
2,952

Long-term debt, including current installments on long-term debt (including fair value adjustments related to fair value hedges) (Level 2)
329,761

 
362,577

 
357,576

 
379,048

Fair Values of Derivative Instruments
The following table presents the gross fair values of derivative instruments on our Consolidated Condensed Balance Sheets as of the balance sheet dates:
 
(Dollars in thousands)
Balance Sheet Location
 
March 31,
2013
 
December 31,
2012
Derivatives designated as hedging instruments:
 
 
 
 
 
Interest rate contracts
Other assets (non-current)
 
$
2,706

 
$
2,952

Total derivatives designated as hedging instruments
 
 
$
2,706

 
$
2,952

Effect of Derivatives on Consolidated Condensed Statements of Income
The following table details the effect of derivatives on the Consolidated Statements of Income for the three months ended March 31:
 
Location of Gain (Loss)
 Recognized in Income
 
Gain (Loss) Recognized in Income
(Dollars in thousands)
 
 
2013
 
2012
Derivatives designated in fair value hedging relationships:
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
Realized gain on hedging instrument(1)
Interest expense
 
$
246

 
$
215

Net gain recognized in income from fair value hedges
 
 
$
246

 
$
215

 
 
 
 
 
 
Derivatives not designated as hedging instruments:
 
 
 
 
 
Lumber contracts
 
 
 
 
 
Unrealized loss on derivative
Cost of goods sold
 
$

 
$
(294
)
Realized gain on derivative
Cost of goods sold
 

 
351

Net gain recognized in income from derivatives not designated as hedging instruments
 
 
$

 
$
57

 
(1) 
Realized gain on hedging instrument consists of net cash settlements and interest accruals on the interest rate swaps during the periods.