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Acquisitions Acquisitions - ADEA (Details) - USD ($)	3 Months Ended
Acquisitions Acquisitions - ADEA (Details) - USD ($)	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Goodwill		$ 301,150,000	$ 301,321,000
ADEA Medical Inc
Fair value of common stock issued for business acquisition	$ 2,100,000
Cash consideration	200,000
Net assets acquired	$ 3,300,000
ADEA Medical Inc \| Sales Restriction Ending 4Q2019
Consideration in common stock (in shares)	10,000
ADEA Medical Inc \| Sales Restriction Ending 2Q2022
Consideration in common stock (in shares)	40,000
ADEA Medical Inc
Equity Method Investment, Ownership Percentage				23.80%
Healthcare
Goodwill		$ 275,843,000	$ 276,014,000
Healthcare \| ADEA Medical Inc
Goodwill	$ 2,600,000
Goodwill, amount deductible	$ 0
Common Stock \| ADEA Medical Inc
Consideration in common stock (in shares)	50,000