Condensed Consolidated Statements of Equity - USD ($) $ in Millions	Total	Dividend Declared	Dividend Paid	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Dividend Declared	Retained Earnings Dividend Paid	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
Beginning balance at Jan. 01, 2022	$ 590.0			$ 42.6	$ 39.2	$ 514.6			$ (6.8)	$ 0.3
Comprehensive income:
Net income (loss)	44.5					44.5				(0.0)
Other comprehensive income (loss), net of tax	(1.3)								(1.3)
Dividends		$ (0.4)	$ (26.5)				$ (0.4)	$ (26.5)
Common shares – treasury:
Shares purchased	(63.9)			(1.7)	(11.1)	(51.1)
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	19.7			0.4	19.3
Ending balance at Jul. 02, 2022	562.0			41.3	47.4	481.1			(8.1)	0.3
Beginning balance at Apr. 02, 2022	582.0			42.4	45.4	500.8			(6.8)	0.3
Comprehensive income:
Net income (loss)	30.3					30.3				0.0
Other comprehensive income (loss), net of tax	(1.3)								(1.3)
Dividends		(0.4)	(13.4)				(0.4)	(13.4)
Common shares – treasury:
Shares purchased	(40.0)			(1.1)	(2.6)	(36.3)
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	4.7			0.1	4.6
Ending balance at Jul. 02, 2022	562.0			41.3	47.4	481.1			(8.1)	0.3
Beginning balance at Dec. 31, 2022	616.8			41.4	49.1	534.0			(8.0)	0.3
Comprehensive income:
Net income (loss)	(11.3)					(11.3)				(0.0)
Other comprehensive income (loss), net of tax	0.0								0.0
Dividends		(0.6)	(28.2)				(0.6)	(28.2)
Shares issued in connection with Kimball International, Inc. acquisition	120.8			4.7	116.1
Common shares – treasury:
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	17.8			0.4	17.3
Ending balance at Jul. 01, 2023	715.3			46.5	182.5	493.9			(8.0)	0.3
Beginning balance at Apr. 01, 2023	613.2			41.7	57.1	522.0			(7.9)	0.3
Comprehensive income:
Net income (loss)	(12.8)					(12.8)				(0.0)
Other comprehensive income (loss), net of tax	(0.1)								(0.1)
Dividends		$ (0.3)	$ (14.9)				$ (0.3)	$ (14.9)
Shares issued in connection with Kimball International, Inc. acquisition	120.8			4.7	116.1
Common shares – treasury:
Shares issued under Members’ Stock Purchase Plan and stock awards, net of tax	9.5			0.1	9.4
Ending balance at Jul. 01, 2023	$ 715.3			$ 46.5	$ 182.5	$ 493.9			$ (8.0)	$ 0.3