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Basis of Presentation - Additional Information (Detail) $ in Millions | Sep. 30, 2019 USD ($)
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Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Operating lease right-of-use assets | $ 71.3
Operating lease liability current | 13.0
Operating lease liability noncurrent | 62.6
ASU 2016-02 |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Operating lease liability | 78.8
Operating lease right-of-use assets | 74.5
Operating lease liability current | 13.1
Operating lease liability noncurrent | $ 65.7
Assurex [Member] | Assurex Canada Ltd [Member] |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Non controlling interest ownership percentage by parent | 85.00%
Centre For Addiction And Mental Health [Member] | Assurex Canada Ltd [Member] |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Non controlling interest ownership percentage by noncontrolling owners | 15.00%

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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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