CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017
Cash flows from operating activities of continuing operations:
Net income	$ 110,212	$ 195,188
Adjustments to reconcile net income to net cash provided by operating activities:
(Income) loss from discontinued operations	(1,293)	2,922
Depreciation expense	44,517	42,390
Amortization expense of intangible assets	111,974	63,976
Amortization expense of deferred financing costs and debt discount	3,548	3,940
Loss on extinguishment of debt	0	5,593
Fair value step up of acquired inventory sold	0	10,442
Changes in contingent consideration	47,344	(109)
Impairment of long-lived assets	19,110	0
Stock-based compensation	16,469	14,519
Deferred income taxes, net	8,664	(15,682)
Other	(13,028)	(13,559)
Changes in operating assets and liabilities, net of effects of acquisitions and disposals:
Accounts receivable	(29,830)	6,428
Inventories	(19,665)	(20,257)
Prepaid expenses and other current assets	(6,468)	(4,009)
Accounts payable, accrued expenses and other liabilities	54,581	24,128
Income taxes receivable and payable, net	(43,191)	3,798
Net cash provided by operating activities from continuing operations	302,944	319,708
Cash flows from investing activities of continuing operations:
Expenditures for property, plant and equipment	(55,751)	(53,977)
Proceeds from sale of assets	0	6,332
Payments for businesses and intangibles acquired, net of cash acquired	(22,550)	(1,010,711)
Net cash used in investing activities from continuing operations	(78,301)	(1,058,356)
Cash flows from financing activities of continuing operations:
Proceeds from new borrowings	0	1,963,500
Reduction in borrowings	(98,500)	(747,576)
Debt extinguishment, issuance and amendment fees	(188)	(19,114)
Net proceeds from share based compensation plans and the related tax impacts	18,666	4,739
Payments for contingent consideration	(73,152)	(245)
Dividends paid	(46,526)	(45,905)
Net cash provided by (used in) financing activities from continuing operations	(199,700)	1,155,399
Cash flows from discontinued operations:
Net cash used in operating activities	(701)	(1,140)
Net cash used in discontinued operations	(701)	(1,140)
Effect of exchange rate changes on cash and cash equivalents	(1,524)	58,173
Net increase in cash and cash equivalents	22,718	473,784
Cash and cash equivalents at the beginning of the period	333,558	543,789
Cash and cash equivalents at the end of the period	356,276	1,017,573
Non cash investing activities of continuing operations:
Property, plant and equipment additions due to build-to-suit lease transaction	28,147	0
Non cash financing activities of continuing operations:
Settlement and exchange of convertible notes with common or treasury stock	0	53,207
Acquisition of treasury stock associated with settlement and exchange of convertible note hedge and warrant agreements	$ 56,075	$ 127,158