Discontinued Operations and Assets and Liabilities Held For Sale (American Medical Systems) (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchases of property, plant and equipment			$ 94,102,000	$ 88,087,000
Discontinued Operations, Disposed of by Sale | AMS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss	$ 3,017,000	$ (27,309,000)	(705,886,000)	(118,633,000)
Purchases of property, plant and equipment			0	100,000
Depreciation and amortization expense	$ 0	$ 0	$ 0	$ 0