Intangible Assets and Goodwill (Details) - USD ($)		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2018	Jun. 27, 2018
Finite-Lived Intangible Assets [Line Items]
Short-Duration Contracts, Discounted Liabilities, Discount Rate						21.00%
Amortization of Intangible Assets		$ 15,831,000	$ 24,689,000	$ 12,028,000
Finite-Lived Intangible Assets, Gross		55,752,000	252,540,000
Finite-Lived Intangible Assets, Accumulated Amortization		(4,433,000)	(36,717,000)
Finite-Lived Intangible Assets, Net		51,319,000	215,823,000
Intangible assets, net		51,319,000	215,823,000
Impairment of Intangible Assets, Finite-lived		152,330,000	0	$ 0
Acquired rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	36,143,000.000	216,690,000.000
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(2,258,000.000)	(32,503,000.000)
Finite-Lived Intangible Assets, Net	[1]	33,885,000.000	184,187,000.000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	8,028,000.000	26,080,000.000
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(782,000.000)	(3,729,000.000)
Finite-Lived Intangible Assets, Net	[1]	7,246,000.000	22,351,000.000
Patented Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	11,011,000.000	9,200,000.000
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(1,203,000.000)	(409,000.000)
Finite-Lived Intangible Assets, Net	[1]	9,808,000.000	8,791,000.000
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	570,000.000	570,000.000
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(190,000.000)	(76,000.000)
Finite-Lived Intangible Assets, Net	[1]	$ 380,000.000	$ 494,000.000
Noden [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)						$ 192,500,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		8 years
Intangible assets, net					$ 40,100,000	$ 192,500,000
Impairment of Intangible Assets, Finite-lived		$ 152,300,000
LENSAR [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		15 years
DirectFlow [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		10 years

[1] 1) The Company acquired certain intangible assets as part of the Noden Transaction. They are being amortized on a straight-line basis over a weighted-average period of eight years.(2) The Company acquired certain intangible assets as part of the LENSAR transaction. The intangible assets are being amortized on a straight-line basis over a weighted-average period of 15 years. The intangible assets for customer relationships are being amortized using a double-declining method of amortization as such method better represents the economic benefits to be obtained. For a further discussion of the LENSAR transaction, see Note 23, Business Combinations.(3) The Company acquired certain intangible assets as part of the foreclosure on certain of Direct Flow Medical assets, as described further in Note 9, Notes and Other Long-Term Receivables. They are being amortized on a straight-line basis over a weighted-average period of 10 years.