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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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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.

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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.

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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.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Face (par) amount of debt instrument at time of issuance.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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The number of businesses acquired by the entity during the period.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Business Combinations (Narrative) (Details) business in Thousands		3 Months Ended
	Apr. 30, 2019 USD ($) business	Feb. 29, 2020 USD ($)	Feb. 28, 2019 USD ($)	Nov. 30, 2019 USD ($)
Business Acquisition [Line Items]
Goodwill		$ 432,789,000		$ 432,824,000
Share-based payment arrangement, expense		6,051,000	$ 5,806,000
Acquisition-related expenses		314,000	$ 0
Intangible assets		$ 111,300,000
Federal statutory income tax rate, percent		24.50%
Ipswitch
Business Acquisition [Line Items]
Total purchase consideration	$ 225,000,000.0
Escrow deposit	$ 22,500,000
Number of businesses acquired \| business	24
Goodwill	$ 117,871,000
Restricted Stock Units (RSUs) \| Ipswitch
Business Acquisition [Line Items]
Consideration payable in the form of restricted stock units	$ 2,000,000.0
Vesting period	3 years
Remaining amortization period	3 years
Share-based payment arrangement, expense		$ 200,000
Acquisition-related expenses		300,000
Revenue of acquiree since acquisition date, actual		$ 15,200,000
Term Loan \| Ipswitch
Business Acquisition [Line Items]
Term loan	$ 185,000,000.0
Term loan and maximum borrowing capacity	401,000,000.0
Customer-related \| Ipswitch
Business Acquisition [Line Items]
Intangible assets	66,600,000
Purchased technology \| Ipswitch
Business Acquisition [Line Items]
Intangible assets	33,100,000
Trade name \| Ipswitch
Business Acquisition [Line Items]
Intangible assets	$ 9,600,000