Information By Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Revenues	$ 614,576	$ 607,221
Gross profit	187,263	179,855
Operating income (loss)	20,823	(140,448)
Total other income (expense)	(14,851)	(16,010)
Income (loss) before income taxes	5,972	(156,458)
Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	221,755	249,367
Gross profit	39,916	53,604
Operating income (loss)	25,457	38,192
Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	336,427	302,338
Gross profit	127,068	114,241
Operating income (loss)	95,322	79,943
Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	56,394	55,516
Gross profit	20,279	12,010
Operating income (loss)	10,410	(655)
Corporate Unallocated [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(110,366)	(257,928)
Product [Member]
Segment Reporting Information [Line Items]
Revenues	544,850	537,110
Product [Member] \| Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	218,569	245,423
Product [Member] \| Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	314,350	279,795
Product [Member] \| Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	11,931	11,892
Service [Member]
Segment Reporting Information [Line Items]
Revenues	69,726	70,111
Service [Member] \| Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	3,186	3,944
Service [Member] \| Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	22,077	22,543
Service [Member] \| Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	$ 44,463	$ 43,624

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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