Fair Value of Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Summary of Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis

The fair value of financial assets and liabilities measured on a recurring basis was as follows:

	March 31, 2022		Level 1		Level 2		Level 3
	(dollars in thousands)
Prepaid expenses and other current assets:
Commodity index contracts	$	1,468	—		1,468		—
Interest rate swap contracts	7,249		—		7,249		—
Total	$	8,717	$	—	$	8,717	$	—
Other long-term assets:
Interest rate swap contracts	34,821		$	—	$	34,821	$	—
Total	$	34,821	$	—	$	34,821	$	—
Accrued expenses:
Interest rate swap contracts	7,892		—		7,892		—
Total	$	7,892	$	—	$	7,892	$	—
Other long-term liabilities:
Interest rate swap contracts	$	22,136	$	—	$	22,136	$	—
Contingent consideration	404		—		—		404
Total	$	22,540	$	—	$	22,136	$	404

	September 30, 2021		Level 1		Level 2		Level 3
	(dollars in thousands)
Prepaid expenses and other current assets:
Foreign currency forward contracts	$	134	$	—	$	134	$	—
Commodity index contracts	3,378		—		3,378		—
Interest rate swap contracts	8,762		—		8,762		—
Total	$	12,274	$	—	$	12,274	$	—
Other long-term assets:
Interest rate swap contracts	$	27,267	$	—	$	27,267	$	—
Total	$	27,267	$	—	$	27,267	$	—
Accrued expenses:
Interest rate swap contracts	$	14,688	$	—	$	14,688	$	—
Total	$	14,688	$	—	$	14,688	$	—
Other long-term liabilities:
Interest rate swap contracts	$	40,392	$	—	$	40,392	$	—
Contingent consideration	503		—		—		503
Total	$	40,895	$	—	$	40,392	$	503