Internally Developed Capitalized Software (Tables)

3 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Line Items]

Summary of Internally Developed Capitalized Software

Activity in our internally developed capitalized software during the three months ended March 31, 2017 and 2016 was as follows (in thousands):

	Gross Carrying Amount		Accumulated Depreciation			Net Carrying Amount
Balance at December 31, 2016	$	15,015	$	(7,931	)	$	7,084
Additions	729		—			729
Depreciation expense	—		(932		)	(932		)
Balance at March 31, 2017	$	15,744	$	(8,863	)	$	6,881
						$	—
Balance at December 31, 2015	$	14,582	$	(6,880	)	$	7,702
Depreciation expense	—		(919		)	(919		)
Balance at March 31, 2016	$	14,582	$	(7,799	)	$	6,783

Amortization Expense for Future Periods

We estimate that we will have the following amortization expense for the future periods indicated below (in thousands):

For the remaining nine months ending December 31, 2017	$	105
For the year ending December 31, 2018	58
Total	$	163

Depreciation Expense Related to Capitalized Software

Property, Plant and Equipment [Line Items]

Amortization Expense for Future Periods

Depreciation expense related to capitalized software no longer in the application development stage, for the future periods is indicated below (in thousands):

For the remaining nine months ending December 31, 2017	$	2,569
For the years ending December 31:
2018	2,643
2019	1,649
2020	20
Total	$	6,881