Customer Concentration and Revenue Information (Tables)

12 Months Ended

Jan. 27, 2024

Revenue from Contract with Customer [Abstract]

Customer Credit Concentration

Customers whose combined amounts of accounts receivable and contract assets, net exceeded 10% of total combined accounts receivable and contract assets, net as of January 27, 2024 or January 28, 2023 were as follows (dollars in millions):

	January 27, 2024				January 28, 2023
	Amount		% of Total		Amount		% of Total
Lumen Technologies	$	345.0	27.4	%	$	189.3	17.4	%
Comcast Corporation	$	104.7	8.3	%	$	125.2	11.5	%
AT&T Inc.	$	90.3	7.2	%	$	136.2	12.5	%

Customers whose contract revenues exceeded 10% of total contract revenues during fiscal 2024, fiscal 2023, or fiscal 2022, as well as total contract revenues from all other customers combined, were as follows:

	Fiscal Year Ended
	January 27, 2024				January 28, 2023				January 29, 2022
	Amount		% of Total		Amount		% of Total		Amount		% of Total
AT&T Inc.	$	706.5	16.9	%	$	958.0	25.2	%	$	735.2	23.5	%
Lumen Technologies	650.6		15.6	%	483.5		12.7	%	373.0		11.9	%
Comcast Corporation	448.6		10.7	%	430.6		11.3	%	473.8		15.1	%
Verizon Communications Inc.	373.8		9.0	%	347.3		9.1	%	352.6		11.3	%
Total other customers combined	1,996.1		47.8	%	1,589.1		41.7	%	1,195.9		38.2	%
Total contract revenues	$	4,175.6	100.0%		$	3,808.5	100.0%		$3,130.5		100.0%

Total contract revenues by customer type during fiscal 2024, fiscal 2023, and fiscal 2022, were as follows (dollars in millions):

	Fiscal Year Ended
	January 27, 2024			January 28, 2023			January 29, 2022
	Amount		% of Total	Amount		% of Total	Amount		% of Total
Telecommunications	$	3,743.3	89.6%	$	3,415.8	89.7%	$	2,777.6	88.7%
Underground facility locating	295.3		7.1%	274.9		7.2%	255.4		8.2%
Electrical and gas utilities and other	137.0		3.3%	117.8		3.1%	97.5		3.1%
Total contract revenues	$	4,175.6	100.0%	$	3,808.5	100.0%	$	3,130.5	100.0%