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Derivative Financial Instruments | 3 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Derivative Financial Instruments | Derivative Financial Instruments We use certain interest rate derivative contracts to hedge interest rate exposures on our variable rate debt. We enter into foreign currency derivative contracts with financial institutions to reduce the risk that cash flows and earnings will be adversely affected by foreign currency exchange rate fluctuations. Our hedging program is not designated for trading or speculative purposes. We recognize derivative instruments as either assets or liabilities on our consolidated balance sheets at fair value. We record changes in the fair value (i.e., gains or losses) of the derivatives that have been designated as cash flow hedges in our consolidated balance sheets as accumulated other comprehensive income (loss), and in our consolidated statements of income for those derivatives designated as fair value hedges. In fiscal 2013, we entered into three interest rate swap agreements that we designated as cash flow hedges to fix the variable interest rates on a portion of borrowings under our term loan facility. In the first quarter of fiscal 2014, we entered into two interest rate swap agreements that we designated as cash flow hedges to fix the variable interest rates on the borrowings under our term loan facility. At December 31, 2017, the effective portion of our interest rate swap agreements designated as cash flow hedges before tax effect was $0.1 million and is expected to be reclassified from accumulated other comprehensive income (loss) to interest expense within the next 12 months. As of December 31, 2017, the notional principal, fixed rates and related expiration dates of our outstanding interest rate swap agreements are as follows:
Notional Amount (in thousands) |  | Fixed Rate |  | Expiration Date
$39,398 |  | 1.36% |  | May 2018
39,398 |  | 1.34% |  | May 2018
39,398 |  | 1.35% |  | May 2018
19,700 |  | 1.23% |  | May 2018
19,700 |  | 1.24% |  | May 2018
The fair values of our outstanding derivatives designated as hedging instruments were as follows:
|  |  | Fair Value of Derivative Instruments as of
| Balance Sheet Location |  | December 31, 2017 |  | October 1, 2017
|  |  | (in thousands)
Interest rate swap agreements | Other current assets |  | $ | 118 |  |  | $ | 49 |
The impact of the effective portions of derivative instruments in cash flow hedging relationships and fair value relationships on income and other comprehensive income was immaterial for the first three months of fiscal 2018 and the fiscal year ended October 1, 2017. Additionally, there were no ineffective portions of derivative instruments. Accordingly, no amounts were excluded from effectiveness testing for our interest rate swap agreements.

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- Definition The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -URI http://asc.fasb.org/topic&trid=2229140 + Details
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