Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Mar. 31, 2012
Mar. 31, 2011
Assets    
Allowance for doubtful accounts $ 6,273 $ 7,121
Stockholders' Equity    
Preferred stock, par value $ 1.00 $ 1.00
Preferred stock, shares authorized 5,000 5,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 100,000 100,000
Common stock, shares issued 25,730 25,561
Common stock, shares outstanding 17,480 17,918
Treasury stock, shares 8,250 7,643