CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Class A Common Stock [Member]	Common Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Stockholders' Equity Attributable to Parent, Beginning Balance at Dec. 30, 2012	$ 611	$ 248	$ 2,219,163	$ (1,696,176)	$ (481,316)	$ (29)	$ 42,501
Changes in accumulated other comprehensive loss
Net Income (Loss)				18,803			18,803
Other comprehensive income					176,415		176,415
Issuance of shares	10		927				937
Stock compensation expense			3,523				3,523
Treasury stock, acquired						(1,793)	(1,793)
Treasury stock, retired	(6)		(1,779)			1,785
Stockholders' Equity Attributable to Parent, Ending Balance at Dec. 29, 2013	615	248	2,221,834	(1,677,373)	(304,901)	(37)	240,386
Changes in accumulated other comprehensive loss
Net Income (Loss)				373,989			373,989
Other comprehensive income					(111,702)		(111,702)
Issuance of shares	24		4,784				4,808
Conversion of shares	2	(2)
Stock compensation expense			3,507				3,507
Treasury stock, acquired						(7,603)	(7,603)
Treasury stock, retired	(15)		(7,450)			7,465
Stockholders' Equity Attributable to Parent, Ending Balance at Dec. 28, 2014	626	246	2,222,675	(1,303,384)	(416,603)	(175)	503,385
Changes in accumulated other comprehensive loss
Net Income (Loss)				(300,162)			(300,162)
Other comprehensive income					(5,205)		(5,205)
Issuance of shares	9		(8)				1
Conversion of shares	2	(2)
Stock compensation expense			3,178				3,178
Treasury stock, acquired						(8,434)	(8,434)
Treasury stock, retired	(49)		(6,364)			6,413
Stockholders' Equity Attributable to Parent, Ending Balance at Dec. 27, 2015	$ 588	$ 244	$ 2,219,481	$ (1,603,546)	$ (421,808)	$ (2,196)	$ 192,763