Subsequent Event

6 Months Ended

Oct. 31, 2011

Subsequent Events [Abstract]

Subsequent Event

13. Subsequent Event

In November 2011, we entered into a new five-year credit agreement with various U.S. and international banks for $800.0 million that will expire on November 18, 2016, and terminated our existing bank credit agreement that was scheduled to expire in April 2012. Consistent with the previous agreement, the new agreement’s most restrictive covenant requires our ratio of consolidated EBITDA (as defined in the agreement) to consolidated interest expense to be at least 3 to 1.