Note 4 - Taxes on Income (Detail) - Significant components of deferred tax liabilities and assets: (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 25, 2011
Deferred tax liabilities:
Difference between book and tax bases of intangible assets	$ 61,188	$ 44,085
Tax over book depreciation	23,783	60,255
Total deferred tax liabilities	84,971	104,340
Deferred tax assets:
Employee benefits	(7,009)	(16,847)
Net operating losses	(125,131)	(76,580)
Other comprehensive income items	(94,663)	(82,125)
Other	(353)	(2,596)
Total deferred tax assets	(227,156)	(178,148)
Net deferred tax assets	(142,185)	(73,808)
Valuation allowance	200,423	116,906
Deferred tax assets included in other current assets	627	2,856
Deferred tax liabilities	$ 58,865	$ 45,954