Segment Information - Information By Segment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total revenues	$ 2,173,350,000	$ 2,502,470,000	$ 2,376,117,000
Gross profit	602,167,000	752,319,000	730,319,000
Operating Income (Loss)	(10,395,000)	132,683,000	(49,692,000)
Total other income (expense)	(46,244,000)	(59,651,000)	(59,459,000)
Total income before income taxes	(56,639,000)	73,032,000	(109,151,000)
Depreciation and amortization of intangible assets	97,290,000	114,400,000	122,497,000
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Operating Income (Loss)	(406,882,000)	(406,198,000)	(558,093,000)
Depreciation and amortization of intangible assets	49,919,000	70,491,000	78,232,000
Device Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues	693,995,000	858,881,000	933,365,000
Gross profit	86,859,000	152,562,000	187,254,000
Operating Income (Loss)	40,769,000	97,753,000	130,988,000
Depreciation and amortization of intangible assets	25,058,000	25,542,000	25,022,000
Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	1,249,402,000	1,417,254,000	1,224,144,000
Gross profit	432,906,000	518,749,000	482,471,000
Operating Income (Loss)	308,099,000	397,325,000	360,779,000
Depreciation and amortization of intangible assets	16,965,000	13,004,000	12,671,000
Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	229,953,000	226,335,000	218,608,000
Gross profit	82,402,000	81,008,000	60,594,000
Operating Income (Loss)	47,619,000	43,803,000	16,634,000
Depreciation and amortization of intangible assets	5,348,000	5,363,000	6,572,000
Product [Member]
Segment Reporting Information [Line Items]
Total revenues	1,889,173,000	2,220,395,000	2,095,458,000
Product [Member] | Device Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues	684,517,000	847,580,000	916,809,000
Product [Member] | Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	1,148,698,000	1,322,382,000	1,133,919,000
Product [Member] | Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	55,958,000	50,433,000	44,730,000
Service [Member]
Segment Reporting Information [Line Items]
Total revenues	284,177,000	282,075,000	280,659,000
Service [Member] | Device Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues	9,478,000	11,301,000	16,556,000
Service [Member] | Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	100,704,000	94,872,000	90,225,000
Service [Member] | Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 173,995,000	$ 175,902,000	$ 173,878,000