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Nature of Operations and Summary of Significant Accounting Policies - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
 9 Months Ended
Oct. 01, 2016
Oct. 03, 2015
Non-Cash Investing Activities:    
Fair value of assets of acquired business $ 87,060 $ 0
Cash paid for acquired business (58,894) 0
Liabilities assumed of acquired business 28,166 0
Non-Cash Financing Activities:    
Issuance of Company common stock 3,260 3,195
Dividends declared but unpaid $ 2,074 $ 1,833