Nature of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

The components of other current liabilities are included in the following table (in thousands):



	December 31,
	2019		2018
Operating lease liabilities	$	15,049	$	—
Vendor financed licenses	9,667		3,551
Royalties payable	6,107		11,318
Accrued interest	9,212		8,407
Other	36,936		38,412
Total other current liabilities	$	76,971	$	61,688

Summary of Property and Equipment Estimated Useful Lives and Balances

As of December 31, 2019 and 2018, net property and equipment consisted of the following (in thousands):



		December 31,
	Useful Lives	2019			2018
Computer and office equipment	3 - 5 years	$	143,942		$	129,359
Leasehold improvements	Lesser of useful life of improvement or remaining life of lease	33,346			32,096
Furniture and fixtures	7 years	12,980			12,500
Building and improvements	7 - 30 years	14,553			14,381
Land	Non-depreciable	1,785			1,785
Property and equipment, gross		206,606			190,121
Less: accumulated depreciation		(136,226		)	(117,392		)
Property and equipment, net		$	70,380		$	72,729

Summary of Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill attributable to each reporting unit during the year ended December 31, 2019, were as follows (in thousands):



	ACI On Demand		ACI On Premise			Total
Gross Balance, prior to December 31, 2018	$	183,783	$	773,340		$	957,123
Total impairment prior to December 31, 2018	—		(47,432		)	(47,432		)
Balance, December 31, 2018	183,783		725,908			909,691
Goodwill from acquisitions (1)	370,834		—			370,834
Balance, December 31, 2019	$	554,617	$	725,908		$	1,280,525

(1)

Goodwill from acquisitions relates to the goodwill recorded for the acquisition of E Commerce Group Products, Inc. ("ECG"), along with ECG's subsidiary, Speedpay, Inc. (collectively referred to as "Speedpay") and Walletron, Inc. ("Walletron"), as discussed in Note 3, Acquisition. The purchase price allocations for Speedpay and Walletron are preliminary as of December 31, 2019, and are subject to future changes during the maximum one-year measurement period.