Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of deferred tax asset attributable to deductible temporary differences and carryforwards 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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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Fair value portion of investments accounted under the equity method.

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Useful life 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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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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The company goal for annual appraisal revenue.

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The company goal for annual small balance lending volume.

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Amount of receivables due to acquirer from former owners or affiliates of the acquiree which were forgiven as part of the consideration transferred by the entity to the former owners of the acquiree.

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Amount of gain (loss) on remeasurement of an equity method investment prior to transaction in which controlling interest is acquired..

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Period over which significant growth of appraisal revenue is expected.

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Value of input used to remeasure equity method investment to fair value prior to transaction in which controlling interest is acquired.

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Number of acquisitions during the period.

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GOODWILL AND OTHER INTANGIBLE ASSETS - Acquisitions (Detail) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	Feb. 28, 2022 USD ($)	Sep. 30, 2022 USD ($) item	Sep. 30, 2022 USD ($) item segment	Dec. 31, 2021 USD ($) segment	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Acquisitions
Number of acquisitions during the period \| item		2	2
Receivable forgiven		$ 5,460	$ 5,460
Gain on remeasurement of equity investment to fair value prior to acquisition of controlling interest			39,641
Goodwill recognized		948,164	$ 948,164	$ 698,635	$ 333,249	$ 248,958
Number of reportable segments \| segment			3	1
Measurement-period adjustments			$ 26,859
Annual small balance lending volume goal by 2025			5,000,000
Annual appraisal revenue goal by 2025			$ 75,000
Expected period of significant appraisal revenue growth			5 years
Maximum
Acquisitions
Contingent consideration liability earnout period			5 years
Discounted Cash Flows \| Measurement Input, Discount Rate
Fair value valuation
Investment, Measurement Input	0.170
Capital Markets
Acquisitions
Goodwill recognized		451,345	$ 451,345
Apprise
Acquisitions
Book value of equity method investment prior to transaction	$ 18,900
Fair value of equity method investment prior to transaction	58,500
Apprise \| Other Revenues
Acquisitions
Gain on remeasurement of equity investment to fair value prior to acquisition of controlling interest	$ 39,600
Apprise
Acquisitions
Total ownership interest	100.00%
GeoPhy
Acquisitions
Ownership interest acquired	100.00%
Cash consideration	$ 82,100
Receivable forgiven	5,500
Contingent consideration liabilities	117,000
Total consideration	204,600
Deferred tax assets	$ 9,400
Contingent consideration liability earnout period	4 years
Maximum earnout of contingent consideration	$ 205,000
Estimated undiscounted maximum earnout of contingent consideration	$ 132,700
Estimated maximum percentage earnout of contingent consideration	65.00%
Liability recognized as a percentage of the maximum consideration which may be paid	57.00%
Measurement-period adjustments		5,500
GeoPhy \| Contingent Consideration Liability, Apprise Portion \| Probability-weighted Expected Return \| Probability of earnout achievement
Fair value valuation
Contingent consideration liabilities, Measurement input	0.170
GeoPhy \| Contingent Consideration Liability, Small Balance Portion \| Probability-weighted Expected Return \| Probability of earnout achievement
Fair value valuation
Contingent consideration liabilities, Measurement input	0.145
GeoPhy \| Technology intangible assets
Acquisitions
Intangible assets acquired	$ 31,000
Amortization period of intangible assets	10 years
GeoPhy \| Capital Markets
Acquisitions
Goodwill recognized	$ 206,400
Apprise
Acquisitions
Ownership interest acquired	50.00%
Investment Sales Brokerage Company
Acquisitions
Cash consideration		6,000
Contingent consideration liabilities		3,000	3,000
Goodwill recognized		$ 8,800	8,800
Alliant Capital, LTD
Acquisitions
Measurement-period adjustments			$ 29,700