Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of changes in the carrying value of goodwill

The following table summarizes the changes in the carrying value of goodwill by reportable segment (in thousands):

	GSG		CIG		Total
Balance at September 29, 2024	$	750,817	$	1,295,752	$	2,046,569
Acquisition activity	—		10,114		10,114
Goodwill impairment	(92,416)		—		(92,416)
Translation adjustments	(2,271)		(48,862)		(51,133)
Balance at March 30, 2025	$	656,130	$	1,257,004	$	1,913,134

Summary of acquired identifiable intangible assets with finite useful lives

The following table presents the gross amount and accumulated amortization of our acquired identifiable intangible assets with finite useful lives included in “Intangible assets, net” on the consolidated balance sheets ($ in thousands):

	As of
	March 30, 2025							September 29, 2024
	Weighted- Average Remaining Life (in Years)	Gross Amount		Accumulated Amortization		Net Amount		Gross Amount		Accumulated Amortization		Net Amount
Client relations	7.9	$	193,216	$	(66,387)	$	126,829	$	198,726	$	(57,975)	$	140,751
Backlog	0.1	72,881		(72,639)		242		75,194		(71,101)		4,093
Trade names	0.9	39,398		(29,685)		9,713		40,926		(25,185)		15,741
Total		$	305,495	$	(168,711)	$	136,784	$	314,846	$	(154,261)	$	160,585

Estimated amortization expense for the remainder of the fiscal year and the succeeding years

Estimated amortization expense for the remainder of fiscal 2025 and succeeding years is as follows (in thousands):

	Amount
2025 (remaining)	$	15,810
2026	23,879
2027	17,151
2028	16,642
2029	15,759
Beyond	47,543
Total	$	136,784