Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Components of Property and Equipment

The components of property and equipment are:

	December 31,
	2016			2015
	(in thousands)
Land and land improvements	$	3,107		$	3,107
Facilities in progress and software under development	19,825			21,089
Computer equipment and software	132,610			117,762
Buildings and leasehold improvements	37,232			37,205
Furniture, fixtures and equipment	16,919			17,158
Assets under capital lease	4,827			4,827
	214,520			201,148
Less: Accumulated depreciation and amortization	(130,459		)	(112,990		)
Property and equipment, at cost, net	$	84,061		$	88,158

Schedule of Estimated Useful Lives

A summary of the ranges of estimated useful lives upon which depreciation rates are based follows:

Computer equipment and software	2-7 years
Buildings and leasehold improvements	10-40 years
Furniture, fixtures and equipment	3-8 years
Assets under capital leases	3-8 years