Derivative Instruments (Notes)

3 Months Ended

Jun. 30, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Hedging Activities Disclosure [Text Block]

Derivative Instruments

The Company has international operations and is thus subject to foreign currency rate fluctuations.  To manage the risk of changes in foreign currency rates, the Company periodically enters into derivative contracts comprised of foreign currency forward contracts to hedge its asset and liability foreign currency exposure and a portion of its foreign currency operating expenses.  Approximately 99% of the Company's sales are U.S. Dollar denominated.  To date, the exposure related to foreign exchange rate volatility has not been material to the Company's operating results.  As of June 30, 2012 and March 31, 2012, the Company had no foreign currency derivatives outstanding.  The Company recognized net realized losses on foreign currency derivatives of $1.0 million in the three months ended June 30, 2012 and net realized gains on foreign currency derivatives of $0.7 million in the three months ended June 30, 2011, due to fluctuations in foreign currency rates.