Segment Information - Information By Segment (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total revenues	$ 628,383,000	$ 624,474,000	$ 635,037,000	$ 614,576,000	$ 587,044,000	$ 595,962,000	$ 585,890,000	$ 607,221,000	$ 2,502,470,000	$ 2,376,117,000	$ 2,018,197,000
Gross profit	$ 177,438,000	$ 196,404,000	$ 191,214,000	$ 187,263,000	$ 176,790,000	$ 197,097,000	$ 176,577,000	$ 179,855,000	752,319,000	730,319,000	676,751,000
Operating Income (Loss)									132,683,000	(49,692,000)	154,877,000
Total other income (expense)									(59,651,000)	(59,459,000)	(20,302,000)
Total income before income taxes									73,032,000	(109,151,000)	134,575,000
Depreciation and amortization of intangible assets									114,400,000	122,497,000	63,215,000
Device Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues									858,881,000	933,365,000	882,896,000
Gross profit									152,562,000	187,254,000	216,631,000
Operating Income (Loss)									97,753,000	130,988,000	159,641,000
Depreciation and amortization of intangible assets									25,542,000	25,022,000	25,757,000
Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Total revenues									1,417,254,000	1,224,144,000	947,384,000
Gross profit									518,749,000	482,471,000	412,375,000
Operating Income (Loss)									397,325,000	360,779,000	322,367,000
Depreciation and amortization of intangible assets									13,004,000	12,671,000	7,758,000
Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Total revenues									226,335,000	218,608,000	187,917,000
Gross profit									81,008,000	60,594,000	47,745,000
Operating Income (Loss)									43,803,000	16,634,000	4,915,000
Depreciation and amortization of intangible assets									5,363,000	6,572,000	3,826,000
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									(406,198,000)	(558,093,000)	(332,046,000)
Depreciation and amortization of intangible assets									70,491,000	78,232,000	25,874,000
Product [Member]
Segment Reporting Information [Line Items]
Total revenues									2,220,395,000	2,095,458,000	1,813,925,000
Product [Member] | Device Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues									847,580,000	916,809,000	866,028,000
Product [Member] | Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Total revenues									1,322,382,000	1,133,919,000	881,042,000
Product [Member] | Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Total revenues									50,433,000	44,730,000	66,855,000
Service [Member]
Segment Reporting Information [Line Items]
Total revenues									282,075,000	280,659,000	204,272,000
Service [Member] | Device Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues									11,301,000	16,556,000	16,868,000
Service [Member] | Networked Solutions Segment [Member]
Segment Reporting Information [Line Items]
Total revenues									94,872,000	90,225,000	66,342,000
Service [Member] | Outcomes Segment [Member]
Segment Reporting Information [Line Items]
Total revenues									$ 175,902,000	$ 173,878,000	$ 121,062,000