Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 28, 2015	Dec. 28, 2014
Current assets:
Cash and cash equivalents	$ 57,341	$ 62,451
Short term investments	1,150	3,750
Accounts receivable, net	102,442	102,493
Inventories	69,412	74,677
Income taxes receivable	1,420	3,740
Deferred income taxes, net	9,764	9,897
Other current assets	24,555	19,003
Total current assets	266,084	276,011
Property, plant and equipment, net	247,649	255,035
Investment in and advances to unconsolidated affiliate	2,000	2,000
Non-current deferred income taxes, net	15,216	17,852
Non-current assets	30,486	29,012
Total assets	561,435	579,910
Current liabilities:
Accounts payable	22,936	23,938
Accrued expenses	43,699	48,024
Total current liabilities	66,635	71,962
Non-current income tax liabilities	7,190	13,621
Non-current deferred income tax liabilities, net	15,219	15,122
Other non-current liabilities	40,075	40,199
Commitments and contingencies (Note 14)	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 - 26,632,794 shares, (27,155,550 shares at December 29, 2013)	86,579	81,473
Accumulated other comprehensive loss	(88,103)	(81,425)
Retained earnings	433,840	438,958
Total shareholders' equity	432,316	439,006
Total liabilities and shareholders' equity	$ 561,435	$ 579,910

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).