CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest	Dividend Declared	Dividend Declared Retained Earnings	Dividend Paid	Dividend Paid Retained Earnings
Beginning balance at Dec. 29, 2018	$ 563,259	$ 43,582	$ 18,041	$ 504,909	$ (3,599)	$ 326
Comprehensive income:
Net income (loss)	1,020			1,022		(2)
Other comprehensive income (loss), net of tax	298				298
Impact of new accounting standard related to credit losses	0			739	(739)
Cash dividends	(12,872)			(12,872)
Common shares – treasury:
Shares purchased	(24,685)	(647)	(16,948)	(7,090)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	15,232	404	14,828
Ending balance at Mar. 30, 2019	545,251	43,339	15,921	489,707	(4,040)	324
Beginning balance at Dec. 28, 2019	584,368	42,595	19,799	529,723	(8,073)	324
Comprehensive income:
Net income (loss)	(23,896)			(23,895)		(1)
Other comprehensive income (loss), net of tax	(2,757)				(2,757)
Cash dividends							$ (46)	$ (46)	$ (13,033)	$ (13,033)
Common shares – treasury:
Shares purchased	(5,741)	(187)	(4,365)	(1,189)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	12,891	239	12,652
Ending balance at Mar. 28, 2020	$ 551,655	$ 42,647	$ 28,086	$ 491,429	$ (10,830)	$ 323