Derivative Instruments and Hedging Activities	3 Months Ended
Jul. 31, 2018
Derivative Instruments and Hedging Activities [Abstract]
Derivative Instruments and Hedging Activities	Note 13 — Derivative Instruments and Hedging Activities From time-to-time, we enter into forward exchange and interest rate swap contracts as a hedge against foreign currency asset and liability commitments, changes in interest rates and anticipated transaction exposures, including intercompany purchases. All derivatives are recognized as assets or liabilities and measured at fair value on our Condensed Consolidated Balance Sheets. Derivatives that are not determined to be effective hedges are adjusted to fair value with a corresponding adjustment to earnings. We do not use financial instruments for trading or speculative purposes. Interest Rate Contracts We had $507.5 million of variable rate loans outstanding at July 31, 2018, which approximated fair value. We had $360.0 million of variable rate loans outstanding at April 30, 2018, which approximated fair value. As of July 31, 2018 and 2017 the interest rate swap agreements maintained by us were designated as cash flow hedges as defined under ASC 815 "Derivatives and Hedging". As a result, there was no impact on our Condensed Consolidated Statements of Income for changes in the fair value of the interest rate swaps as they were fully offset by changes in the interest expense on the underlying variable rate debt instruments. On April 4, 2016, we entered into a forward starting interest rate swap agreement which fixed a portion of the variable interest due on a variable rate debt renewal on May 16, 2016. Under the terms of the agreement, we pay a fixed rate of 0.92% and receive a variable rate of interest based on one-month LIBOR from the counterparty which is reset every month for a three-year period ending May 15, 2019. As of July 31, 2018 and April 30, 2018, the notional amount of the interest rate swap was $350 million. We record the fair value of our interest rate swaps on a recurring basis using Level 2 inputs of quoted prices for similar assets or liabilities in active markets. The fair value of the interest rate swaps as of July 31, 2018 and April 30, 2018 was a deferred gain of $4.3 million and $5.1 million, respectively. Based on the maturity dates of the contracts, the entire deferred gain as of July 31, 2018 was recorded within Prepaid Expenses and Other Current Assets and as of April 30, 2018 was recorded within Other Non-Current Assets. The pre-tax gains (losses) that were reclassified from Accumulated Other Comprehensive Loss into Interest Expense for the three months ended July 31, 2018 and 2017 were $1.0 million and $0.1 million, respectively. Foreign Currency Contracts We may enter into forward exchange contracts to manage our exposure on certain foreign currency denominated assets and liabilities. The forward exchange contracts are marked to market through Foreign Exchange Transaction (Losses) Gains in the Condensed Consolidated Statements of Income, and carried at their fair value in the Condensed Consolidated Statements of Financial Position. Foreign currency denominated assets and liabilities are remeasured at spot rates in effect on the balance sheet date, with the effects of changes in spot rates reported in Foreign Exchange Transaction (Losses) Gains. As of July 31, 2018, and April 30, 2018, we did not maintain any open forward exchange contracts.

Note 13 — Derivative Instruments and Hedging Activities

From time-to-time, we enter into forward exchange and interest rate swap contracts as a hedge against foreign currency asset and liability commitments, changes in interest rates and anticipated transaction exposures, including intercompany purchases. All derivatives are recognized as assets or liabilities and measured at fair value on our Condensed Consolidated Balance Sheets. Derivatives that are not determined to be effective hedges are adjusted to fair value with a corresponding adjustment to earnings. We do not use financial instruments for trading or speculative purposes.

Interest Rate Contracts

We had $507.5 million of variable rate loans outstanding at July 31, 2018, which approximated fair value. We had $360.0 million of variable rate loans outstanding at April 30, 2018, which approximated fair value.

As of July 31, 2018 and 2017 the interest rate swap agreements maintained by us were designated as cash flow hedges as defined under ASC 815 "Derivatives and Hedging". As a result, there was no impact on our Condensed Consolidated Statements of Income for changes in the fair value of the interest rate swaps as they were fully offset by changes in the interest expense on the underlying variable rate debt instruments.

On April 4, 2016, we entered into a forward starting interest rate swap agreement which fixed a portion of the variable interest due on a variable rate debt renewal on May 16, 2016. Under the terms of the agreement, we pay a fixed rate of 0.92% and receive a variable rate of interest based on one-month LIBOR from the counterparty which is reset every month for a three-year period ending May 15, 2019. As of July 31, 2018 and April 30, 2018, the notional amount of the interest rate swap was $350 million.

We record the fair value of our interest rate swaps on a recurring basis using Level 2 inputs of quoted prices for similar assets or liabilities in active markets. The fair value of the interest rate swaps as of July 31, 2018 and April 30, 2018 was a deferred gain of $4.3 million and $5.1 million, respectively. Based on the maturity dates of the contracts, the entire deferred gain as of July 31, 2018 was recorded within Prepaid Expenses and Other Current Assets and as of April 30, 2018 was recorded within Other Non-Current Assets. The pre-tax gains (losses) that were reclassified from Accumulated Other Comprehensive Loss into Interest Expense for the three months ended July 31, 2018 and 2017 were $1.0 million and $0.1 million, respectively.

Foreign Currency Contracts

We may enter into forward exchange contracts to manage our exposure on certain foreign currency denominated assets and liabilities. The forward exchange contracts are marked to market through Foreign Exchange Transaction (Losses) Gains in the Condensed Consolidated Statements of Income, and carried at their fair value in the Condensed Consolidated Statements of Financial Position. Foreign currency denominated assets and liabilities are remeasured at spot rates in effect on the balance sheet date, with the effects of changes in spot rates reported in Foreign Exchange Transaction (Losses) Gains.

As of July 31, 2018, and April 30, 2018, we did not maintain any open forward exchange contracts.