CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Cash flows from operating activities--
Net earnings	$ 222,313	$ 222,942
Adjustments to reconcile net earnings to net cash provided by operating activities--
Depreciation and amortization expense	66,455	49,276
Non-cash share-based compensation	5,268	6,478
Deferred taxes	13,312	21,369
Gain (Loss) on Disposition of Assets	0	(12,042)
Gain (Loss) on Sale of Assets and Asset Impairment Charges	783	2,894
Restructuring, Settlement and Impairment Provisions	5,179	0
Changes in assets and liabilities, net of acquisitions
Accounts receivable, net	(38,936)	13,834
Inventories, net	(25,604)	(19,967)
Prepaid expenses and other assets	10,400	(3,359)
Accounts payable	24,625	(17,639)
Accrued expenses and other liabilities	(31,748)	(58,894)
Net cash provided by operating activities	252,047	204,892
Cash flows from investing activities--
Additions to property and equipment	(32,552)	(42,434)
Proceeds from Sale of Property, Plant, and Equipment	0	14,278
Payments to Acquire Intangible Assets	(5,399)	0
Payments to Acquire Businesses, Net of Cash Acquired	(1,147,738)	(159,458)
Net cash (used in) investing activities	(1,185,689)	(187,614)
Cash flows from financing activities--
Proceeds from Lines of Credit	1,520,225	489,484
Repayments of Lines of Credit	(588,911)	(272,185)
Net (repayments) proceeds under foreign bank loan	(6,997)	(1,062)
Proceeds from (Repayments of) Notes Payable	(3)	(26)
Proceeds from (Payments for) Other Financing Activities	(692)	0
Repurchase of treasury stock	0	(224,996)
Net cash (used in) provided by financing activities	923,622	(8,785)
Effect of exchange rates on cash and cash equivalents	(3,046)	4,748
Changes in cash and cash equivalents--
Net (decrease) increase in cash and cash equivalents	(13,066)	13,241
Cash and cash equivalents at beginning of year	89,654	68,485
Cash and cash equivalents at end of quarter	76,588
CVP Systems [Member]
Changes in cash and cash equivalents--
Stock Issued During Period, Value, Acquisitions	$ 0	$ 12,330