Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

The estimated useful lives, by asset class, are as follows:

Computer equipment	3 years
Software, including internal-use software	1 to 6 years
Office equipment	5 years
Furniture and fixtures	7 years

Property and equipment at December 31, 2015 and 2014 consisted of the following (in thousands):  

	2015			2014
Computer equipment	$	8,148		$	7,454
Software, including internal use software	59,718			48,731
Office equipment and furniture	4,778			4,099
Leasehold improvements	2,498			1,902
	75,142			62,186
Less accumulated depreciation	(42,461		)	(32,422		)
	$	32,681		$	29,764