Derivative Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments

The notional amounts of our derivative instruments are as follows:

	March 31, 2022		September 30, 2021
Derivatives designated as hedging instruments:
Interest rate swap contract - new agreement	$	552,015	$	555,210
Derivatives not designated as hedging instruments:
Foreign exchange contracts to purchase U.S. dollars	$	4,250	$	4,225
Foreign exchange contracts to sell U.S. dollars	29,290		23,235

Schedule of Derivative Instruments in the Consolidated Balance Sheets

The fair values of our derivative instruments included in the Consolidated Balance Sheets are as follows:

		Derivative Assets				Derivative Liabilities
	Consolidated Balance Sheet Location	March 31, 2022		September 30, 2021		March 31, 2022		September 30, 2021
Derivatives designated as hedging instruments:
Interest rate swap contract	Prepaid expenses and other current assets	$	6,001	$	—	$	—	$	—
	Other long-term assets	36,902		12,335		—		—
	Accrued expenses and other current liabilities	—		—		—		2,995
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Prepaid expenses and other current assets	$	124	$	—	$	—	$	—
	Accrued expenses and other current liabilities	—		—		489		388

Schedule of Derivative Instruments on Consolidated Statements of Income

The following table summarizes the effects of our derivative instruments on our Consolidated Statements of Income (Loss):

		Loss Recognized in Statement of Income (Loss)
	Consolidated Statement of Income (Loss) Location	Three Months Ended March 31,				Six Months Ended March 31,
		2022		2021		2022		2021
Derivatives designated as hedging instruments:
Interest rate swap contract	Interest expense, net	$	(792)	$	(809)	$	(1,583)	$	(3,254)
Terminated interest rate swap contract	Interest expense, net	(2,786)		(2,786)		(5,572)		(3,715)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Other (expense) income, net	$	(673)	$	(759)	$	(1,385)	$	(637)

The following table summarizes the effects of our derivative instruments on Accumulated other comprehensive income:

	Gain Recognized in Other Comprehensive Income
	Three Months Ended March 31,				Six Months Ended March 31,
	2022		2021		2022		2021
Derivatives designated as hedging instruments:
Interest rate swap contract	$	26,508	$	19,361	$	31,979	$	12,912