Derivative Financial Instruments (Policies)

9 Months Ended

Jan. 31, 2014

Derivative Financial Instruments [Abstract]

Derivatives, Offsetting Fair Value Amounts, Policy [Policy Text Block]

Offsetting. As noted above, our derivative contracts are governed by ISDA agreements that allow for net settlement of derivative contracts with the same counterparty. It is our policy to present the fair values of current derivatives (i.e., those with a remaining term of 12 months or less) with the same counterparty on a net basis in the balance sheet. Similarly, we present the fair values of noncurrent derivatives with the same counterparty on a net basis. Current derivatives are not netted with noncurrent derivatives in the balance sheet