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FAIR VALUE DISCLOSURES (Tables)
9 Months Ended 12 Months Ended
Dec. 31, 2011
Mar. 31, 2011
Fair Value [Abstract]    
Schedule of fair value assets measured on non-recurring basis
   Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of December 31, 2011 Total Gain (Loss) for the Three Months Ended December 31, 2011 Total Gain (Loss) for the Nine Months Ended December 31, 2011 
Inventories $0 $48,801 $0 $48,801 $0 $(24,610) 
Assets held for sale  1,200  0  0  1,200  (2,290)  (2,690) 
 Total assets  $1,200 $48,801 $0 $50,001 $ (2,290) $ (27,300) 
 
Schedule of fair value assets measured on recurring basis
   Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of December 31, 2011 Balance Sheet Classification
Rabbi Trust investments  $3,260 $0 $0 $3,260 Other assets
 Total assets  $3,260 $0 $0 $3,260   
   Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance as of March 31, 2011 Balance Sheet Classification
Derivative asset  $0 $3,306 $0 $3,306 Prepaid expenses and other current assets
Rabbi Trust investments   4,091  0  0  4,091 Other assets
 Total assets  $4,091 $3,306 $0 $7,397   
Schedule of fair value of debt
  December 31, 2011 March 31, 2011
  Carrying Value Fair Value Carrying Value Fair Value
7 ½% Senior Notes  $350,363 $363,125 $350,410 $367,500
Term Loan   247,500  247,500  200,000  200,000
Revolving Credit Facility   109,300  109,300  30,000  30,000
3% Convertible Senior Notes   101,726  117,084  99,219  114,929
Other   23,897  23,898  27,832  27,832
  $832,786 $860,907 $707,461 $740,261