Derivative Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following table shows our derivative instruments measured at gross fair value as reflected in the Consolidated Balance Sheets:

(in thousands)	Fair Value of Derivatives Designated As Hedging Instruments				Fair Value of Derivatives Not Designated As Hedging Instruments
	March 31, 2025		September 30, 2024		March 31, 2025		September 30, 2024
Derivative assets(1):
Forward contracts	$	3,170	$	181	$	2,831	$	1,021
Derivative liabilities(2):
Forward contracts	$	—	$	630	$	4,286	$	3,536

(1)As of March 31, 2025 and September 30, 2024, current derivative assets are recorded in Other current assets in the Consolidated Balance Sheets.

(2)As of March 31, 2025 and September 30, 2024, current derivative liabilities are recorded in Accrued expenses and other current liabilities in the Consolidated Balance Sheets.

Schedule of Notional Amounts of Outstanding Forward Contracts and Options

As of March 31, 2025 and September 30, 2024, we had outstanding forward contracts not designated as hedging instruments with notional amounts equivalent to the following:

Currency Hedged (in thousands)	March 31, 2025		September 30, 2024
Euro / U.S. Dollar	$	764,722	$	781,398
British Pound / U.S. Dollar		16,391		24,810
Israeli Shekel / U.S. Dollar		13,615		12,535
Japanese Yen / U.S. Dollar		27,008		42,340
Swiss Franc / U.S. Dollar		5,319		74,939
Swedish Krona / U.S. Dollar		16,036		48,596
Chinese Renminbi / U.S. Dollar		3,891		32,124
New Taiwan Dollar / U.S. Dollar		6,501		16,368
All other		19,551		25,368
Total	$	873,034	$	1,058,478

As of March 31, 2025 and September 30, 2024, we had outstanding forward contracts designated as net investment hedges with notional amounts equivalent to the following:

Currency Hedged (in thousands)	March 31, 2025		September 30, 2024
Euro / U.S. Dollar	$	443,398	$	462,894
Japanese Yen / U.S. Dollar		10,102		10,739
Total	$	453,500	$	473,633

Schedule of Net Gains and Losses on Foreign Currency Exposures

The following table shows the effect of our non-designated hedges on the Consolidated Statements of Operations for the three and six months ended March 31, 2025 and March 31, 2024:

(in thousands)		Three months ended						Six months ended
	Location of Gain (Loss)	March 31, 2025			March 31, 2024			March 31, 2025			March 31, 2024
Net realized and unrealized loss, excluding the underlying foreign currency exposure being hedged	Other income (expense), net	$	(917	)	$	(1,286	)	$	(360	)	$	(5,022	)

The following table shows the effect of our derivative instruments designated as net investment hedges in the Consolidated Statements of Operations for the three and six months ended March 31, 2025 and March 31, 2024:

(in thousands)		Three months ended					Six months ended
	Location of Gain (Loss)	March 31, 2025			March 31, 2024		March 31, 2025		March 31, 2024
Gain (loss) recognized in Other comprehensive income (loss) ("OCI")	OCI	$	(19,898	)	$	8,552	$	13,550	$	(6,752	)
Gain (loss) reclassified from OCI to earnings	n/a	$	—		$	—	$	—	$	—
Gain recognized, excluded portion	Other income (expense), net	$	1,254		$	1,079	$	2,329	$	2,215

Schedule of Offsetting Assets

The following table sets forth the offsetting of derivative assets as of March 31, 2025:

(in thousands)	Gross Amounts Offset in the Consolidated Balance Sheets						Gross Amounts Not Offset in the Consolidated Balance Sheets
As of March 31, 2025	Gross Amount of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets Presented in the Consolidated Balance Sheets		Financial Instruments			Cash Collateral Received		Net Amount
Forward contracts	$	6,001	$	—	$	6,001	$	(4,286	)	$	—	$	1,715

Schedule of Offsetting Liabilities

The following table sets forth the offsetting of derivative liabilities as of March 31, 2025:

(in thousands)	Gross Amounts Offset in the Consolidated Balance Sheets						Gross Amounts Not Offset in the Consolidated Balance Sheets
As of March 31, 2025	Gross Amount of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Liabilities Presented in the Consolidated Balance Sheets		Financial Instruments			Cash Collateral Pledged		Net Amount
Forward contracts	$	4,286	$	—	$	4,286	$	(4,286	)	$	—	$	—