Condensed Consolidated Statements of Equity - USD ($) $ in Millions	Total	Dividends Payable Q2 2025	Cash Dividends Q2 2025	Dividends Payable A2 2025	Cash Dividends A2 2025	Dividends Payable Q2 2024	Cash Dividends Q2 2024	Dividends Payable A2 2024	Cash Dividends A2 2024	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Dividends Payable Q2 2025	Retained Earnings Cash Dividends Q2 2025	Retained Earnings Dividends Payable A2 2025	Retained Earnings Cash Dividends A2 2025	Retained Earnings Dividends Payable Q2 2024	Retained Earnings Cash Dividends Q2 2024	Retained Earnings Dividends Payable A2 2024	Retained Earnings Cash Dividends A2 2024	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
Beginning balance at Dec. 30, 2023	$ 761.8									$ 46.9	$ 201.6	$ 523.6									$ (10.6)	$ 0.3
Comprehensive income:
Net income	53.7											53.7										0.0
Other comprehensive income (loss), net of tax	1.7																				1.7
Dividends								$ (0.9)	$ (30.7)										$ (0.9)	$ (30.7)
Common shares – treasury:
Shares purchased	(13.6)									(0.3)	(13.2)
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	16.2									0.6	15.6
Ending balance at Jun. 29, 2024	788.1									47.1	204.0	545.7									(9.0)	0.3
Beginning balance at Mar. 30, 2024	771.8									47.3	208.1	525.4									(9.3)	0.3
Comprehensive income:
Net income	36.0											36.0										0.0
Other comprehensive income (loss), net of tax	0.3																				0.3
Dividends						$ (0.2)	$ (15.6)										$ (0.2)	$ (15.6)
Common shares – treasury:
Shares purchased	(11.0)									(0.3)	(10.8)
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	6.8									0.1	6.7
Ending balance at Jun. 29, 2024	788.1									47.1	204.0	545.7									(9.0)	0.3
Beginning balance at Dec. 28, 2024	840.4									47.2	201.5	599.6									(8.3)	0.3
Comprehensive income:
Net income	62.2											62.2										0.0
Other comprehensive income (loss), net of tax	7.9																				7.9
Change in ownership for non-controlling interest	(0.3)																					(0.3)
Dividends				$ (0.6)	$ (31.2)										$ (0.6)	$ (31.2)
Common shares – treasury:
Shares purchased	(79.9)									(1.7)	(78.2)
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	12.6									0.4	12.2
Ending balance at Jun. 28, 2025	811.0									45.8	135.6	630.0									(0.4)	0.0
Beginning balance at Mar. 29, 2025	803.9									46.6	168.1	597.7									(8.8)	0.3
Comprehensive income:
Net income	48.3											48.2										0.0
Other comprehensive income (loss), net of tax	8.4																				8.4
Change in ownership for non-controlling interest	(0.3)																					(0.3)
Dividends		$ (0.4)	$ (15.7)										$ (0.4)	$ (15.7)
Common shares – treasury:
Shares purchased	(38.7)									(0.9)	(37.9)
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	5.5									0.1	5.4
Ending balance at Jun. 28, 2025	$ 811.0									$ 45.8	$ 135.6	$ 630.0									$ (0.4)	$ 0.0