Business Combinations Acquisitions (Details) - USD ($) | Jul. 21, 2020 | May 18, 2020 | Jan. 10, 2020 | Sep. 03, 2019 | Aug. 02, 2019 | Apr. 01, 2019 | Oct. 01, 2018 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2020 | Jun. 30, 2019 |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Payments to Acquire Businesses, Gross | | | | | | | $ 17,100,000 | | | | | | | $ (20,600,000) | $ (175,800,000) |
Goodwill | | | | | | | | $ 1,816,900,000 | | | $ 1,800,900,000 | | | 1,816,900,000 | |
Prepaid Royalties | | | | | | | | | | $ 22,000,000 | | | | | |
Special charges | | | | | | | | 9,500,000 | | | | $ 6,200,000 | | 26,100,000 | 17,700,000 |
Gain (Loss) on Disposition of Other Assets | | | | | | | | 3.9 | | | $ 15,900,000 | | | 4.2 | |
Business Exit Costs | | | | | $ 4 | | | | | | | | | | |
BreatheAcquisition [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | | | | $ 300,000 | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | | | | 6,300,000 | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | | 100,000 | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | | | | 2,100,000 | | | | | | | | | | | |
Goodwill | | | | 60,200,000 | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Assets | | | | 200,000 | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | | | | (500,000) | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | | (1,600,000) | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities | | | | (800,000) | | | | | | | | | | | |
Payments to Acquire Businesses, Net of Cash Acquired | | | | 127,600,000 | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities | | | | 900,000 | | | | | | | | | | | |
Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | | | | | | | | | $ 8.4 | | | | | 8.4 | |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | | | | | | $ 15,000,000 | | | | | | | | | |
Payments to Acquire Businesses, Gross | | | | | | 175,800,000 | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | | | | | | 5,800,000 | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | | | | | | 100,000 | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | | | | 2,700,000 | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | | | | | | 200,000 | | | | | | | | | |
Goodwill | | | | | | 98,500,000 | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | | | | | | (1,700,000) | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue | | | | | | (10,700,000) | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | | | | (4,300,000) | | | | | | | | | |
Business Combination, Contingent Consideration, Liability | | | | | | 5,200,000 | | | | | | | | | |
Payments to Acquire Businesses, Net of Cash Acquired | | | | | | 181,000,000 | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities | | | | | | (9,800,000) | | | | | | | | | |
Excel [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | | | $ 1,600,000 | | | | | 500,000 | | | | | | 700,000 | |
Contingent Consideration Classified as Equity, Fair Value Disclosure | | | 4,500,000 | | | | | | | | | | | | |
Business Combination, Integration Related Costs | | | | | | | | 600,000 | | | | | | 1.4 | |
Excel Medical | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | | | 15,000,000 | | | | | | | | | | | | |
Payments to Acquire Businesses, Gross | | | 13,100,000 | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | | | 600,000 | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | | | 900,000 | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | 100,000 | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | | | 100,000 | | | | | | | | | | | | |
Goodwill | | | 9,800,000 | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | (2,700,000) | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability | | | 6,100,000 | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities | | | (500,000) | | | | | | | | | | | | |
Payments to Acquire Businesses, Net of Cash Acquired | | | 19,200,000 | | | | | | | | | | | | |
Breathe [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Business Combination, Integration Related Costs | | | | | | | | 0.5 | | | | | | 2 | |
Special charges | | | | | | | | $ 0.4 | | | | | | $ 2.7 | |
Connecta [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | | $ 4,000,000 | | | | | | | | | | | | | |
Payments to Acquire Businesses, Gross | | 7,500,000 | | | | | | | | | | | | | |
Goodwill | | 4,800,000 | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability | | 200,000 | | | | | | | | | | | | | |
Payments to Acquire Businesses, Net of Cash Acquired | | 7,700,000 | | | | | | | | | | | | | |
Business Combination, Integration Related Costs | | | | | | | | | | | | | | | $ 300,000 |
Business Combination, Contingent Consideration Arrangements, milestone achievement, years | | | | | | | | 3 years 6 months | | | | | | | |
Noncompete Agreements [Member] | Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | | | 2,700,000 | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | | 5 years | | | | |
Trade Names [Member] | BreatheAcquisition [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | 4,000,000 | | | | | | | | | | | |
Trade Names [Member] | Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | | | 13,500,000 | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | | 10 years | | | | |
Trade Names [Member] | Breathe [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | | | | 2 years | | |
Customer Relationships [Member] | Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | | | 29,000,000 | | | | | | | | | |
Customer Relationships [Member] | Breathe [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | 400,000 | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | 8 years | | | | | |
Developed Technology Rights [Member] | BreatheAcquisition [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | $ 56,000,000 | | | | | | | | | | | |
Developed Technology Rights [Member] | Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | | | | $ 55,000,000 | | | | | | | | | |
Developed Technology Rights [Member] | Excel Medical | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | | $ 10,900,000 | | | | | | | | | | | | |
Developed Technology Rights [Member] | Connecta [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Intangible Assets | | $ 2,900,000 | | | | | | | | | | | | | |
Technology-Based Intangible Assets [Member] | Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | | 8 years | | | | |
Technology-Based Intangible Assets [Member] | Excel [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | 5 years | | | | | | | |
Technology-Based Intangible Assets [Member] | Breathe [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | 11 years | | | | | |
Technology-Based Intangible Assets [Member] | Connecta [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | 10 years | | | | | | | | | | | | | |
Customer-Related Intangible Assets | Voalte [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | | | | | | | | | | 10 years | | | | |
Videomed [Member] | Videomed [Member] | | | | | | | | | | | | | | | |
Business Acquisition, Contingent Consideration [Line Items] | | | | | | | | | | | | | | | |
Payments to Acquire Businesses, Gross | $ 9,400,000 | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability | $ 3,700,000 | | | | | | | | | | | | | | |