Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 28,793	$ 68,644	$ 63,084
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	74,735	66,569	19,050
Provision for doubtful accounts	781	2,308	0
Provision for warranty and returns	5,353	845	559
Stock compensation	24,241	19,352	15,242
Loss (gain) on disposal of property and equipment	8,867	3,778	59
Productrationalization	12,696	0	0
Impairment of Intangible Assets, Finite-lived	5,000	0	0
Bond premium amortization	342	103	1,355
Debt issuance cost amortization	288	48	0
Impairment of assets held for sale	269	0
Impairment of assets held for sale	0	0	728
Bargain Purchase Gain	0	(70,890)	(1,456)
Change in fair value of contingent earn-out	20,400	8,000	0
Other	3,856	(220)	75
Changes in operating assets and liabilities
Accounts receivable	(76,742)	(54,533)	744
Inventories	(21,770)	181,699	(5,501)
Prepaid expenses and other assets	1,943	(31,807)	(3,028)
Increase (Decrease) in Due from Related Parties, Current	97,443	(95,309)	0
Accounts payable	23,270	46,648	(463)
Accrued liabilities	(29,553)	33,813	(1,221)
Income taxes, including excess tax benefits and deferred income taxes	(19,997)	(24,625)	714
Net cash provided by operating activities	160,215	154,423	89,941
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(92,720)	(74,479)	(23,361)
Proceeds from sale of assets	765	2	0
Proceeds from the disposal of assets held for sale	13,000	0	3,268
Intangible asset additions	(8,059)	(5,203)	(1,192)
Business acquisitions, net of cash acquired	(1,300)	(162,448)	(2,584)
Purchases of investment securities	(30,496)	(24,743)	(118,384)
Proceeds from sale of investment securities	15,440	0	158,534
Net cash (used in) provided by investing activities	(103,370)	(266,871)	16,281
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of Long-term obligations	0	(75,000)	0
Proceeds from exercise of stock options	14,275	32,003	17,346
Proceeds from employee stock purchase plan	0	2,705	2,361
Purchase of treasury stock	(6,252)	(4,057)	(17,235)
Net cash (used in) provided by financing activities	8,023	(44,349)	2,472
Effect of exchange rate changes on cash	(10,159)	1,787	224
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	54,709	(155,010)	108,918
CASH AND CASH EQUIVALENTS, beginning of period	290,072	445,082	336,164
CASH AND CASH EQUIVALENTS, end of period	344,781	290,072	445,082
SUPPLEMENTAL DISCLSOURE OF CASH FLOW INFORMATION
Cash paid during the year for income taxes	12,598	5,109	21,101
Cash paid during the year for interest	709	2,047	118
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING ACTIVITIES
Accounts payable for property and equipment	26,522	5,376	1,566
Fair value of assets acquired		886,569	3,306
Cash paid for acquisitions, net of cash acquired		(162,448)	(2,584)
Proceeds from Issuance of Debt		(75,000)	0
Estimated working capital adjustment		4,253	0
Contingent consideration		(19,000)	0
Issuance of common stock for acquisitions		(413,139)	0
Bargain Purchase Gain	0	(70,890)	(1,456)
Goodwill, Acquired During Period	$ 1,300	6,536	0
Liabilities Assumed/Adjustments to liabilities assumed			$ (734)
Adjustments to assumed liabilities		156,881
Hospira [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Bargain Purchase Gain		(70,890)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING ACTIVITIES
Proceeds from Issuance of Debt		(75,000)
Contingent consideration		(19,000)
Issuance of common stock for acquisitions		(413,139)
Bargain Purchase Gain		$ (70,890)