Subsequent Event (Narrative) (Details) - Propeller Health [Member] $ in Millions	Jan. 07, 2019 USD ($)
Subsequent Event [Line Items]
Percentage of acquisition shares	100.00%
Total purchase price of acquisition	$ 225.0

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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