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Fair Value Measurements
12 Months Ended
Mar. 31, 2014
Fair Value Measurements [Abstract]  
Fair Value Disclosures Text Block
10. Fair Value of Financial Instruments
         
The carrying amount and estimated fair values of the Company's debt are summarized as follows:
         
  2014 2013
  Carrying Estimated Carrying Estimated
  Amount Fair Value Amount Fair Value
   (In thousands)
Long-term debt, including         
current portion$218,516$219,981$270,186$273,567

The estimated fair value for long-term debt is determined by the quoted market prices for similar debt (comparable to the Company's financial strength) or current rates offered to the Company for debt with the same maturities which is Level 2 from the fair value hierarchy. Since quoted prices for identical instruments in active markets are not available (Level 1), the Company makes use of observable market based inputs to calculate fair value, which is Level 2.