Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Assets [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 8,045	$ 8,090
Finite-Lived Intangible Assets, Accumulated Amortization	$ 383,836	$ 301,187
Stockholders’ equity:
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares, issued (in shares)	167,892,500	167,641,415
Treasury stock (in shares)	3,239,063	3,028,857