Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2019 USD ($)
Summary of Significant Accounting Policies [Line Items]
Inventory write-down	$ 2,300,000	$ 1,900,000
Goodwill and intangible assets	1,800,000,000	2,000,000,000.0
Goodwill	671,940,000	700,193,000	$ 717,099,000
Net intangible assets other than goodwill	1,100,000,000	1,300,000,000
Asset impairment charges	92,399,000	21,778,000	13,194,000
Goodwill impairment loss	26,225,000	11,698,000	0
Amortization of intangible assets	64,783,000	67,933,000	71,484,000
Amortization expense in 2020	56,300,000
Amortization expense in 2021	50,300,000
Amortization expense in 2022	50,000,000.0
Amortization expense in 2023	47,200,000
Amortization expense in 2024	44,200,000
Depreciation	29,000,000.0	29,400,000	30,600,000
Accrual related to uncertain tax positions included in income tax benefit	2,900,000
Estimated tax exposure range	66,000,000
Allowance for doubtful accounts	1,934,000	1,758,000
Provision for doubtful accounts	500,000	700,000
Equity-based compensation expense for continuing operations	$ 13,421,000	21,761,000	28,307,000
Number of reportable segments | segment	2
Foreign currency transaction gains	$ 400,000	$ 1,900,000	1,400,000
Operating lease liability	39,703,000
Operating lease right-of-use assets	$ 39,380,000
Minimum
Summary of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful lives	3 years
Maximum
Summary of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful lives	20 years
Computer Software, Intangible Asset
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Machinery, Medical and Other Equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Machinery, Medical and Other Equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	8 years
Furniture and Fixtures | Minimum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Furniture and Fixtures | Maximum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	12 years
Land, Buildings and Improvements | Minimum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Land, Buildings and Improvements | Maximum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years
Automobiles and Aircraft | Minimum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Automobiles and Aircraft | Maximum
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Accounts Receivable | Government Contracts Concentration Risk
Summary of Significant Accounting Policies [Line Items]
Percentage of revenue contributed by customer	6.00%	7.00%
Accounts Receivable | Customer Concentration Risk
Summary of Significant Accounting Policies [Line Items]
Percentage of revenue contributed by customer	2.50%	2.90%
Accounting Standards Update 2016-02
Summary of Significant Accounting Policies [Line Items]
Operating lease liability				$ 33,700,000
Operating lease right-of-use assets				$ 33,300,000
In Process Research and Development
Summary of Significant Accounting Policies [Line Items]
Net intangible assets other than goodwill	$ 590,200,000	$ 635,600,000
Impairment of assets		10,100,000	$ 13,200,000
VARUBI
Summary of Significant Accounting Policies [Line Items]
Impairment of assets	20,700,000
BioReference
Summary of Significant Accounting Policies [Line Items]
Goodwill	$ 434,800,000
Excess of estimated fair value over carrying amount (as a percent)	11.00%
In Process Research and Development
Summary of Significant Accounting Policies [Line Items]
Impairment of assets		$ 10,100,000