Depreciation and Amortization, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Depreciation and amortization of intangible assets	$ 28,623	$ 30,449	$ 85,691	$ 92,428
Device Solutions [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization of intangible assets	6,373	6,127	19,155	19,043
Networked Solutions Segment [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization of intangible assets	3,077	3,152	9,530	9,467
Outcomes Segment [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization of intangible assets	1,408	1,621	3,995	4,968
Corporate Unallocated [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization of intangible assets	$ 17,765	$ 19,549	$ 53,011	$ 58,950