Information By Segment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Revenues	$ 624,474	$ 595,962	$ 1,874,087	$ 1,789,073
Gross profit	196,404	197,097	574,881	553,529
Operating income (loss)	39,439	41,676	103,820	(78,209)
Total other income (expense)	(15,110)	(16,174)	(44,983)	(45,193)
Income (loss) before income taxes	24,329	25,502	58,837	(123,402)
Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	213,349	220,250	652,827	705,763
Gross profit	40,945	46,484	122,451	148,831
Operating income (loss)	27,905	33,019	81,717	105,721
Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	356,221	320,508	1,048,564	919,012
Gross profit	135,406	133,057	388,717	359,588
Operating income (loss)	105,637	103,998	298,994	265,882
Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	54,904	55,204	172,696	164,298
Gross profit	20,053	17,556	63,713	45,110
Operating income (loss)	10,843	6,372	35,620	9,966
Corporate Unallocated [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(104,946)	(101,713)	(312,511)	(459,778)
Product [Member]
Segment Reporting Information [Line Items]
Revenues	552,897	525,716	1,663,794	1,578,740
Product [Member] \| Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	211,096	216,371	644,254	693,544
Product [Member] \| Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	330,487	297,726	978,259	852,819
Product [Member] \| Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	11,314	11,619	41,281	32,377
Service [Member]
Segment Reporting Information [Line Items]
Revenues	71,577	70,246	210,293	210,333
Service [Member] \| Device Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	2,253	3,879	8,573	12,219
Service [Member] \| Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	25,734	22,782	70,305	66,193
Service [Member] \| Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Revenues	$ 43,590	$ 43,585	$ 131,415	$ 131,921

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

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