Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets and their Related Useful Lives

The following table presents our intangible assets and their related useful lives (dollars in thousands):

	Useful Life	March 31, 2016			December 31, 2015
Acquired technology	5-7 years	$	20,441		$	20,441
Accumulated amortization		(17,008		)	(16,103		)
		3,433			4,338
Perpetual software licenses	2 years	2,430			2,430
Accumulated amortization		(2,430		)	(2,430		)
		—			—
Covenant not to compete	1-4 years	2,028			2,028
Accumulated amortization		(2,015		)	(1,976		)
		13			52
Other	2-7 years	1,939			1,939
Accumulated amortization		(1,877		)	(1,783		)
		62			156
Total intangible assets, net		$	3,508		$	4,546

Amortization Expense Related to Intangible Assets

Amortization expense related to intangible assets was as follows (in thousands):

Three Months Ended March 31,
2016	2015
$1,038	$1,639

Expected Future Amortization Expense

Expected future amortization expense as of March 31, 2016 is as follows (in thousands):

Remainder of 2016	$	1,648
2017	1,481
2018	379
2019	—
2020	—
Thereafter	—
	$	3,508