Capitalized Software, Furniture, Equipment and Leasehold Improvements (Tables)

12 Months Ended

Dec. 31, 2017

Property Plant And Equipment [Abstract]

Capitalized Software Development Costs, Furniture, Equipment and Leasehold Improvements, Net of Accumulated Depreciation and Amortization

Capitalized software development costs, furniture, equipment and leasehold improvements, net of accumulated depreciation and amortization, are comprised of the following:

	As of December 31,
	2017			2016
	(In thousands)
Software development costs	$	86,129		$	71,551
Computer hardware and related software		35,945			20,152
Office hardware		4,575			4,228
Furniture and fixtures		2,347			2,001
Leasehold improvements		11,016			8,351
		140,012			106,283
Accumulated depreciation and amortization		(101,464	)		(75,179	)
Total	$	38,548		$	31,104