Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 24, 2012	Dec. 25, 2011
Current assets:
Cash and cash equivalents	$ 207,494	$ 187,795
Short term investments	4,791	5,126
Accounts receivable, net	128,529	119,895
Inventories	67,211	66,933
Income taxes receivable	3,669	4,950
Deferred income taxes, net	5,641	5,299
Assets held for sale	1,500	1,500
Other current assets	7,963	12,785
Total current assets	426,798	404,283
Property, plant and equipment, net	142,237	145,747
Investment in and advances to unconsolidated affiliate	4,639	4,725
Non-current deferred income taxes, net	11,633	16,795
Non-current assets	22,550	21,681
Total assets	607,857	593,231
Current liabilities:
Accounts payable	38,984	29,018
Accrued expenses	43,171	39,532
Total current liabilities	82,155	68,550
Non-current income tax liabilities	29,212	33,102
Other non-current liabilities	31,140	31,064
Commitments and contingencies (Note 15)	0	0
Shareholders' equity:
Preferred stock, no par value, Authorized - 1,000,000 shares, Issued - none	0	0
Common stock, no par value, Authorized - 100,000,000 shares, Issued and outstanding - 27,224,138 shares, (27,164,013 shares at December 25, 2011)	70,193	68,775
Accumulated other comprehensive loss	(66,625)	(65,600)
Retained earnings	461,782	457,340
Total shareholders' equity	465,350	460,515
Total liabilities and shareholders' equity	$ 607,857	$ 593,231