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Intangible assets (Tables)

12 Months Ended

Sep. 30, 2024

Intangible assets other than goodwill [abstract]

Disclosure of detailed information about intangible assets


Software			1 to 8 years
Business solutions			3 to 10 years

Client relationships and backlog			5 to 7 years


			Software			Software internally developed			Business solutions acquired			Business solutions internally developed						Client relationships and backlog			Total
			$			$			$			$						$			$
Cost
As at September 30, 2023			228,673			110,225			90,139			841,740						1,248,069			2,518,846
Additions			50,534			7,720			—			100,810						—			159,064
Business acquisitions (Note 27)			69			—			—			—						124,330			124,399

Disposals/retirements			(26,301)			(5,806)			(9,672)			(20,221)						—			(62,000)

Foreign currency translation adjustment			3,203			931			1,309			5,968						39,762			51,173
As at September 30, 2024			256,178			113,070			81,776			928,297						1,412,161			2,791,482
Accumulated amortization and impairment
As at September 30, 2023			175,238			75,187			67,954			474,462						1,102,902			1,895,743
Amortization expense (Note 24)			40,088			14,810			3,838			77,701						49,304			185,741
Impairment (Note 24)			1,439			131			—			10,004						—			11,574
Disposals/retirements			(26,301)			(5,806)			(9,672)			(20,221)						—			(62,000)
Foreign currency translation adjustment			2,647			666			1,200			2,517						34,819			41,849
As at September 30, 2024			193,111			84,988			63,320			544,463						1,187,025			2,072,907
Net carrying amount as at September 30, 2024			63,067			28,082			18,456			383,834						225,136			718,575


			Software			Software internally developed			Business solutions acquired			Business solutions internally developed						Client relationships and backlog			Total
			$			$			$			$						$			$
Cost
As at September 30, 2022			238,940			104,486			78,580			734,021						1,231,393			2,387,420
Additions			33,963			9,130			19,811			111,894						—			174,798
Business acquisitions (Note 27b)			—			—			—			—						(8,951)			(8,951)
Disposals/retirements			(49,103)			(3,900)			(9,002)			—						—			(62,005)

Foreign currency translation adjustment			4,873			509			750			(4,175)						25,627			27,584
As at September 30, 2023			228,673			110,225			90,139			841,740						1,248,069			2,518,846
Accumulated amortization and impairment
As at September 30, 2022			189,639			65,323			73,094			408,298						1,035,107			1,771,461
Amortization expense (Note 24)			30,475			13,421			3,274			69,053						47,824			164,047

Disposals/retirements			(49,103)			(3,900)			(9,002)			—						—			(62,005)
Foreign currency translation adjustment			4,227			343			588			(2,889)						19,971			22,240
As at September 30, 2023			175,238			75,187			67,954			474,462						1,102,902			1,895,743
Net carrying amount as at September 30, 2023			53,435			35,038			22,185			367,278						145,167			623,103