Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Foreign Exchange Contracts by Currency (Details)

v2.4.0.6
Fair Value Measurements - Foreign Exchange Contracts by Currency (Details) (Foreign Exchange Forward Contracts [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
Derivatives [Line Items]    
Notional amount $ 10,125 $ 14,429
Russian Rubles [Member]
   
Derivatives [Line Items]    
Notional amount 4,233 5,625
Euro [Member]
   
Derivatives [Line Items]    
Notional amount 2,510 7,495
Canadian Dollars [Member]
   
Derivatives [Line Items]    
Notional amount 2,134 1,309
South Korean Won [Member]
   
Derivatives [Line Items]    
Notional amount 919 0
Other [Member]
   
Derivatives [Line Items]    
Notional amount $ 329