Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Financial Assets And Liabilities Subject To Fair Value Measurements On a Recurring Basis

Financial assets and liabilities subject to fair value measurements on a recurring basis are as follows:

	September 30, 2017
(in thousands)	Level 1		Level 2		Level 3		Total
Assets
Currency contracts1	$	—	$	150	$	—	$	150
Interest rate swaps2	—		3,499		—		3,499
Total assets	—		3,649		—		3,649
Liabilities
Currency contracts1	—		551		—		551
Total liabilities	$	—	$	551	$	—	$	551

	October 1, 2016
(in thousands)	Level 1		Level 2		Level 3		Total
Assets
Currency contracts1	$	—	$	149	$	—	$	149
Total assets	—		149		—		149
Liabilities
Currency contracts1	—		711		—		711
Total liabilities	$	—	$	711	$	—	$	711

¹  Based on observable market transactions of spot currency rates and forward currency rates on equivalently-termed instruments. Carrying amounts of the financial assets and liabilities are equal to the fair value. See Note 4 for additional information on derivative financial instruments.

²  Based on London Interbank Offered Rate (LIBOR) and spot rates. Carrying amount of the financial asset is equal to the fair value. See Note 4 for additional information on derivative financial instruments. 

Schedule of Estimated Fair Values of Debt Instruments

The carrying amount and estimated fair values of our debt are as follows:

	September 30, 2017
(in thousands)		Carrying Value		Fair Value		Level 1		Level 2		Level 3
Debt component of tangible equity units3		$	16,443	$	19,844	$	—	$	19,844	$	—
Tranche B term loan4		455,400		457,085		—		457,085		—
Total debt		$	471,843	$	476,929	$	—	$	476,929	$	—

	October 1, 2016
(in thousands)		Carrying Value		Fair Value		Level 1		Level 2		Level 3
Debt component of tangible equity units3		$	24,985	$	28,080	$	—	$	28,080	$	—
Tranche B term loan4		460,000		465,465		—		465,465		—
Total debt		$	484,985	$	493,545	$	—	$	493,545	$	—

³  The fair value of the TEUs is based on the most recently quoted price for the outstanding securities, adjusted for any known significant deviations in value. The estimated fair value of these long-term obligations is not necessarily indicative of the amount that would be realized in a current market exchange. See Note 9 for additional information on the TEUs.

⁴  The fair value of the tranche B term loan is based on the most recently quoted market price for the outstanding debt instrument, adjusted for any known significant deviations in value. The estimated fair value of the debt obligation is not necessarily indicative of the amount that would be realized in a current market exchange. See Note 5 for additional information on debt instruments.