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Disaggregation of Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of disaggregation of revenue

Recurring revenues and non-recurring revenues recognized during the period are as follows:



For the year ended December 31, 2018
		Enterprise Software				Appraisal and Tax				Corporate				Totals

Recurring revenues		$	570,645			$	34,424			$	—			$	605,069
Non-recurring revenues		269,400				55,932				4,881				330,213
Intercompany		13,155				—				(13,155		)		—
Total revenues		$	853,200			$	90,356			$	(8,274	)		$	935,282



For the year ended December 31, 2017
(As Adjusted)		Enterprise Software				Appraisal and Tax				Corporate				Totals

Recurring revenues		$	502,018			$	29,477			$	—			$	531,495
Non-recurring revenues		252,690				52,102				4,612				309,404
Intercompany		10,425				—				(10,425		)		—
Total revenues		$	765,133			$	81,579			$	(5,813	)		$	840,899

Timing of revenue recognition by revenue category during the period is as follows:



For the year ended December 31, 2018
		Products and services transferred at a point in time				Products and services transferred over time				Total
Revenues
Software licenses and royalties		$	75,188			$	18,253			$	93,441
Subscriptions		—				220,547				220,547
Software services		—				191,269				191,269
Maintenance		—				384,521				384,521
Appraisal services		—				21,846				21,846
Hardware and other		23,658				—				23,658
Total		$	98,846			$	836,436			$	935,282



For the year ended December 31, 2017
(As Adjusted)		Products and services transferred at a point in time				Products and services transferred over time				Total
Revenues
Software licenses and royalties		$	69,167			$	17,075			$	86,242
Subscriptions		—				172,176				172,176
Software services		—				180,460				180,460
Maintenance		—				359,319				359,319
Appraisal services		—				25,023				25,023
Hardware and other		17,679				—				17,679
Total		$	86,846			$	754,053			$	840,899