CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 28, 2014	Dec. 29, 2013
Accounts receivable, allowances	$ 12,860	$ 14,252
Common stock, par value (USD per share)	$ 0.1	$ 0.1
Class A Common Stock
Authorized shares (in shares)	300,000,000	300,000,000
Issued shares (in shares)	151,701,136	151,289,625
Treasury shares (in shares)	2,180,442	2,180,471
Class B Common Stock
Authorized shares (in shares)	816,635	818,061
Issued shares (in shares)	816,635	818,061
Treasury shares (in shares)	0	0

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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