Business combinations and disposal Revitalised (Details) - USD ($) $ in Thousands |
Jul. 18, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|---|---|---|---|---|
| Business Acquisition [Line Items] | ||||
| Goodwill | $ 399,882 | $ 402,976 | $ 397,558 | |
| Revitalised | ||||
| Business Acquisition [Line Items] | ||||
| Share capital acquired (as a percent) | 100.00% | |||
| Cash consideration | $ 2,700 | |||
| Contingent consideration arrangements, range of outcomes, value, high | 1,400 | |||
| Goodwill | 2,800 | |||
| Intangible assets | $ 1,300 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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