Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2016	Jun. 27, 2015
Operating activities:
Net income	$ 46,441	$ 48,679
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	16,156	14,761
Amortization of intangibles	8,952	6,030
Stock-based compensation	6,124	5,764
Impairment of long-lived assets	1,391
Inventory Charge Related to Step-up in Cost Basis	6,902
Excess tax benefit on share-based compensation	(1,585)	(1,470)
Loss on sale of assets	331	329
Accounts receivable	(20,846)	(21,266)
Inventories	(1,282)	(1,199)
Accounts payable	2,974	3,440
Accrued expenses (including post-retirement)	5,715	11,129
Accrued payroll and severance	(10,227)	(3,652)
Accrued taxes	(13,946)	(3,003)
Prepaid expenses and other	(11,824)	2,422
Net cash provided by operating activities	35,276	61,964
Investing activities:
Acquisition of businesses, net of cash acquired	(354,356)
Purchases of property, plant, and equipment	(20,217)	(26,388)
Decrease in entrusted loan receivable		3,519
Proceeds from sale of assets	370	48
Net cash used in investing activities	(374,203)	(22,821)
Financing activities:
Proceeds from revolving credit facility	(258,000)	(11,000)
Proceeds from term loan	125,000
Payments of revolving credit facility	(97,500)	(21,000)
Payments of term loan	(86,563)	(2,500)
Payments of entrusted loan		(3,519)
Debt issuance costs	(1,701)	(42)
Cash dividends paid	(12,995)	(11,296)
Proceeds from exercise of stock options	2,960	6,278
Excess tax benefit on share-based compensation	1,586	1,470
Net cash (used in) provided by financing activities	188,787	(19,609)
Effect of exchange rate changes on cash and cash equivalents	815	(5,190)
Increase (decrease) in cash and cash equivalents	(149,325)	14,344
Cash and cash equivalents at beginning of period	328,786	297,571
Cash and cash equivalents at end of period	$ 179,461	$ 311,915