CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss)/Income	Non- controlling Interest
Beginning balance at Jan. 02, 2016	$ 477,299	$ 44,158	$ 4,407	$ 433,575	$ (5,186)	$ 345
Comprehensive income:
Net income (loss)	74,681			74,685		(4)
Other comprehensive income (net of tax)	(1,798)				(1,798)
Cash dividends	(36,260)			(36,260)
Common shares – treasury:
Shares purchased	(30,406)	(608)	(29,798)
Shares issued under Members’ Stock Purchase Plan and stock awards (net of tax)	40,825	987	39,838
Ending balance at Oct. 01, 2016	524,341	44,537	14,447	472,000	(6,984)	341
Beginning balance at Dec. 31, 2016	501,009	44,079	0	461,524	(5,000)	406
Comprehensive income:
Net income (loss)	55,968			55,956		12
Other comprehensive income (net of tax)	733				733
Cash dividends	(37,175)			(37,175)
Common shares – treasury:
Shares purchased	(52,850)	(1,301)	(21,333)	(30,216)
Shares issued under Members’ Stock Purchase Plan and stock awards (net of tax)	28,196	649	27,547
Ending balance at Sep. 30, 2017	$ 495,881	$ 43,427	$ 6,214	$ 450,089	$ (4,267)	$ 418