Computer Software, Net (Tables) - Computer Software, Intangible Asset

12 Months Ended

Dec. 31, 2016

Significant Components of Contract Acquisition Costs, Net of Accumulated Amortization

(in thousands)	2016		2015
Licensed computer software	$	513,790	513,443
Software development costs		428,581	404,238
Acquisition technology intangibles		238,211	167,971
Total computer software		1,180,582	1,085,652
Less accumulated amortization:
Licensed computer software		315,591	282,563
Software development costs		307,190	287,863
Acquisition technology intangibles		134,613	110,156
Total accumulated amortization		757,394	680,582
Computer software, net	$	423,188	405,070

Asset Under Capital Lease

(in thousands)	2016		2015
Licensed computer software	$	23,665	18,206
Accumulated amortization		(14,634)	(8,175)
Licensed computer software, net	$	9,031	10,031

Amortization Expense

(in thousands)	2016		2015	2014
Amortization expense related to:
Licensed computer software	$	45,655	41,823	36,775
Software development costs		26,478	22,740	25,248
Acquisition technology intangibles		26,217	16,734	19,683

Weighted Average Useful Life

	Weighted Average Amortization Period (Yrs)
Licensed computer software		5.8
Software development costs		6.1
Acquisition technology intangibles		6.2
Total		6.0

Estimated Future Amortization Expense

(in thousands)	Licensed Computer Software		Software Development Costs	Acquisition Technology Intangibles
2017	$	42,937	23,777	28,268
2018		34,142	18,225	25,793
2019		21,071	13,414	25,793
2020		17,010	9,646	20,134
2021		9,293	6,787	3,600