Subsequent Event (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Nov. 16, 2018 |
Oct. 05, 2018 |
Dec. 31, 2018 |
Sep. 30, 2018 |
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| Subsequent events | ||||
| Subsequent events | ||||
| Dividend declared date | Oct. 05, 2018 | |||
| Cash dividend declared (in dollars per share) | $ 0.25 | |||
| Dividends payable date | Nov. 30, 2018 | |||
| Dividends payable date of record | Nov. 15, 2018 | |||
| Dividend payable | $ 16.1 | |||
| General Dynamics Information Technology's Citizen Engagement Centers | ||||
| Subsequent events | ||||
| Acquisition-related expenses | $ 0.5 | |||
| General Dynamics Information Technology's Citizen Engagement Centers | Subsequent events | ||||
| Subsequent events | ||||
| Share capital acquired (as a percent) | 100.00% | |||
| Cash consideration | $ 400.0 | |||
| Acquisition-related expenses | $ 3.0 | |||
| Line of Credit | General Dynamics Information Technology's Citizen Engagement Centers | Subsequent events | ||||
| Subsequent events | ||||
| Proceeds from long-term lines of credit | $ 150.0 |
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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 This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Date the dividend to be paid was declared, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. No definition available.
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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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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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