Business combinations and disposals - Schedule of Assets and Liabilities Recorded in the Company's Financial Statements (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Nov. 16, 2018 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | ||||
| Goodwill | $ 593,129 | $ 584,469 | $ 399,882 | |
| General Dynamics Information Technology's Citizen Engagement Centers | ||||
| Business Combination, Consideration Transferred | ||||
| Cash consideration | $ 430,700 | 430,723 | ||
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | ||||
| Billed and unbilled receivables | 142,077 | |||
| Property and equipment | 13,961 | |||
| Other assets | 4,530 | |||
| Intangible assets | 122,300 | |||
| Total identifiable assets acquired | 282,868 | |||
| Accounts payable and other liabilities | 36,785 | |||
| Net identifiable assets acquired | 246,083 | |||
| Goodwill | 184,640 | |||
| Net assets acquired | $ 430,723 |
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- Definition 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
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- References No definition available.
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- Definition Amount of assets acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. 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 recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. 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://www.xbrl.org/2003/role/disclosureRef
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- Details
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