Fair Value

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, various techniques and assumptions can be used to estimate fair value. The definition of the fair value hierarchy is as follows:

Level 1 – Quoted prices in active markets for identical assets and liabilities.

Level 2 – Observable inputs other than quoted prices in active markets for similar assets and liabilities.

Level 3 – Inputs for which significant valuation assumptions are unobservable in a market and therefore value is based on the best available data, some of which is internally developed and considers risk premiums that a market participant would require.

Our derivatives are valued using various pricing models or discounted cash flow analyses that incorporate observable market data, such as interest rate yield curves and currency rates, and are classified as Level 2 within the valuation hierarchy.

The following table presents the fair values and classification of our financial assets and liabilities measured on a recurring basis, all of which are classified as Level 2.



	Classification	March 31, 2018		September 30, 2017
Foreign currency contracts	Other current assets	$	329	$	646
Foreign currency contracts	Other assets	11		50
Interest rate swaps	Other current assets	1,412		552
Interest rate swaps	Other assets	592		314
Net investment hedge	Other current assets	240		—
	Total assets	$	2,584	$	1,562
Foreign currency contracts	Other accrued liabilities	$	1,824	$	1,817
Foreign currency contracts	Other long-term liabilities	494		244
Interest rate swaps	Other accrued liabilities	—		10
Interest rate swaps	Other long-term liabilities	—		15
	Total liabilities	$	2,318	$	2,086

Our only financial instrument for which the carrying value differs from its fair value is long-term debt. At March 31, 2018, the fair value of long-term debt was $917,738 compared to its carrying value of $910,238. The fair value of long-term debt is classified as Level 2 within the fair value hierarchy and was estimated based on quoted market prices.