Acquired Intangible Assets, Capitalized Software Development Costs, and Goodwill (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Acquired Intangible Assets and Capitalized Software Development Costs

Our acquired intangible assets and capitalized software development costs consisted of:

	September 30, 2015						December 31, 2014
	Gross						Gross
	Carrying		Accumulated				Carrying		Accumulated
	Amount		Amortization		Net		Amount		Amortization		Net
Acquired intangible assets and capitalized software development costs:
Acquired intangible assets, including customer lists	$	31,176	$	16,729	$	14,447	$	31,176	$	13,970	$	17,206
Capitalized software development costs		8,771		4,255		4,516		7,680		3,072		4,608
Total acquired intangible assets and capitalized software development costs	$	39,947	$	20,984	$	18,963	$	38,856	$	17,042	$	21,814

Estimated Future Amortization Expense

Estimated future amortization expense:

Remainder of 2015	$               1,380
2016	5,337
2017	4,542
2018	3,366
2019	2,280
Thereafter	2,058
Total estimated future amortization expense	$             18,963

Balances and Changes in Amount of Goodwill

The carrying amount of goodwill is:

	Commercial		Government
	Segment		Segment		Total
Balance as of September 30, 2015 and December 31, 2014	$	49,945	$	54,296	$	104,241