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

9 Months Ended

Sep. 30, 2014

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 the following:

	September 30, 2014						December 31, 2013
	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	$	13,021	$	18,155	$	31,176	$	10,173	$	21,003
Capitalized software development costs		7,035		2,686		4,349		5,969		1,791		4,178
Total acquired intangible assets and capitalized software development costs	$	38,211	$	15,707	$	22,504	$	37,145	$	11,964	$	25,181

Estimated Future Amortization Expense

Estimated future amortization expense:

Year ending December 31, 2014	$	1,188
Year ending December 31, 2015		4,987
Year ending December 31, 2016		4,791
Year ending December 31, 2017		3,977
Year ending December 31, 2018		2,955
Thereafter		4,606
Total estimated future amortization expense	$	22,504

Balances and Changes in Amount of Goodwill

The carrying amount of goodwill is as follows:

	Commercial		Government
	Segment		Segment		Total
Balance as of September 30, 2014 and December 31, 2013	$	49,945	$	54,296	$	104,241