CONSOLIDATED STATEMENTS OF RETAINED EARNINGS, ACCUMULATED OTHER COMPREHENSIVE LOSS AND CHANGES IN CAPITAL ACCOUNTS - USD ($) $ in Thousands	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Shares	Total
Balance at beginning of period at Dec. 28, 2013	$ 176,437	$ 155,984	$ 1,020,633	$ (20,879)	$ (1,364,657)	$ (32,482)
BALANCE (in shares) at Dec. 28, 2013	176,437,234				53,501,234
Activity in the Capital in excess of par value, Retained earnings and Common stock in treasury, at cost
Net income			159,160			159,160
Other comprehensive loss, net of income taxes				(9,107)		(9,107)
Exercise of stock options			(23,266)		$ 65,215	41,949
Exercise of stock options (in shares)					(4,010,331)
Restricted shares issued, net of cancellations and shares withheld for taxes			(10,884)		$ 7,859	(3,025)
Restricted shares issued, net of cancellations and shares withheld for taxes (in shares)					(425,105)
Amortization - share-based compensation		43,116				43,116
Balance at end of period at Jan. 03, 2015	$ 176,437	199,100	1,145,643	(29,986)	$ (1,291,583)	199,611
BALANCE (in shares) at Jan. 03, 2015	176,437,234				49,065,798
Activity in the Capital in excess of par value, Retained earnings and Common stock in treasury, at cost
Net income			17,087			17,087
Other comprehensive loss, net of income taxes				(55)		(55)
Exercise of stock options			(2,109)		$ 4,573	2,464
Exercise of stock options (in shares)					(244,780)
Restricted shares issued, net of cancellations and shares withheld for taxes			(4,783)		$ 5,320	537
Restricted shares issued, net of cancellations and shares withheld for taxes (in shares)					(276,843)
Amortization - share-based compensation		25,577				25,577
Balance at end of period at Jan. 02, 2016	$ 176,437	224,677	1,155,838	(30,041)	$ (1,281,690)	245,221
BALANCE (in shares) at Jan. 02, 2016	176,437,234				48,544,175
Activity in the Capital in excess of par value, Retained earnings and Common stock in treasury, at cost
Net income			153,582			153,582
Other comprehensive loss, net of income taxes				1,881		1,881
Exercise of stock options			(714)		$ 3,345	2,631
Exercise of stock options (in shares)					(174,375)
Restricted shares issued, net of cancellations and shares withheld for taxes			(2,610)		$ 2,087	(523)
Restricted shares issued, net of cancellations and shares withheld for taxes (in shares)					(108,583)
Amortization - share-based compensation		27,139				27,139
Balance at end of period at Dec. 31, 2016	$ 176,437	$ 251,816	$ 1,306,096	$ (28,160)	$ (1,276,258)	$ 429,931
BALANCE (in shares) at Dec. 31, 2016	176,437,234				48,261,217