Information By Segment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenues	$ 635,037	$ 585,890	$ 1,249,613	$ 1,193,111
Gross profit	191,214	176,577	378,477	356,432
Operating income (loss)	43,558	20,563	64,381	(119,885)
Total other income (expense)	(15,022)	(13,009)	(29,873)	(29,019)
Income (loss) before income taxes	28,536	7,554	34,508	(148,904)
Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	217,723	236,146	439,478	485,513
Gross profit	41,590	48,743	81,506	102,347
Operating income (loss)	28,355	34,510	53,812	72,702
Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	355,916	296,166	692,343	598,504
Gross profit	126,243	112,290	253,311	226,531
Operating income (loss)	98,035	81,941	193,357	161,884
Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	61,398	53,578	117,792	109,094
Gross profit	23,381	15,544	43,660	27,554
Operating income (loss)	14,367	4,249	24,777	3,594
Corporate Unallocated [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(97,199)	(100,137)	(207,565)	(358,065)
Product [Member]
Segment Reporting Information [Line Items]
Revenues	566,047	515,914	1,110,897	1,053,024
Product [Member] \| Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	214,589	231,750	433,158	477,173
Product [Member] \| Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	333,422	275,298	647,772	555,093
Product [Member] \| Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	18,036	8,866	29,967	20,758
Service [Member]
Segment Reporting Information [Line Items]
Revenues	68,990	69,976	138,716	140,087
Service [Member] \| Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	3,134	4,396	6,320	8,340
Service [Member] \| Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	22,494	20,868	44,571	43,411
Service [Member] \| Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	$ 43,362	$ 44,712	$ 87,825	$ 88,336

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

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