Segment and Related Information - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) segment business_unit	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of business units | business_unit	6
Payment for construction to expand building	$ 20.8	$ 2.2
Enterprise Software
Segment Reporting Information [Line Items]
Number of reportable segment | segment	1
Payment for construction to expand building	$ 12.6	$ 2.2
Appraisal and Tax
Segment Reporting Information [Line Items]
Payment for construction to expand building	$ 8.2