CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018
Cash flows from operating activities of continuing operations:
Net income (loss)	$ 124,272	$ 53,688
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (income) from discontinued operations	974	(1,309)
Depreciation expense	31,966	29,527
Amortization expense of intangible assets	75,285	75,008
Amortization expense of deferred financing costs and debt discount	2,249	2,368
Gain on sale of assets	(2,739)	0
Changes in contingent consideration	25,456	34,618
Impairment of long-lived assets	6,911	1,865
Stock-based compensation	12,700	10,737
Deferred income taxes, net	(5,495)	4,821
Payments for contingent consideration	(26,092)	0
Other	(4,527)	(3,669)
Changes in assets and liabilities, net of effects of acquisitions and disposals:
Accounts receivable	(19,747)	(15,886)
Inventories	(33,970)	(15,017)
Prepaid expenses and other assets	(6,381)	(3,611)
Accounts payable, accrued expenses and other liabilities	(6,231)	38,112
Income taxes receivable and payable, net	(17,347)	(29,668)
Net cash provided by operating activities from continuing operations	157,284	181,584
Cash flows from investing activities of continuing operations:
Expenditures for property, plant and equipment	(56,107)	(38,004)
Proceeds from sale of assets	1,178	0
Payments for businesses and intangibles acquired, net of cash acquired	(1,025)	(22,450)
Net interest proceeds on swaps designated as net investment hedges	8,330
Net cash used in investing activities from continuing operations	(47,624)	(60,454)
Cash flows from financing activities of continuing operations:
Proceeds from new borrowings	25,000	0
Reduction in borrowings	(52,500)	(18,500)
Debt extinguishment, issuance and amendment fees	(4,703)	(188)
Net proceeds from share based compensation plans and the related tax impacts	7,829	9,800
Payments for contingent consideration	(111,928)	(62,574)
Dividends paid	(31,347)	(30,938)
Net cash used in financing activities from continuing operations	(167,649)	(102,400)
Cash flows from discontinued operations:
Net cash provided by (used in) operating activities	2,799	(464)
Net cash provided by (used in) discontinued operations	2,799	(464)
Effect of exchange rate changes on cash and cash equivalents	1,925	(5,520)
Net (decrease) increase in cash and cash equivalents	(53,265)	12,746
Cash and cash equivalents at the beginning of the period	357,161	333,558
Cash and cash equivalents at the end of the period	303,896	346,304
Non cash investing activities of continuing operations:
Property, plant and equipment additions due to build-to-suit lease transaction	0	28,147
Non cash financing activities of continuing operations:
Acquisition of treasury stock associated with settlement and exchange of convertible note hedge and warrant agreements	$ 0	$ 36,877