Fixed Assets (Tables)

12 Months Ended

Dec. 31, 2016

Property Plant And Equipment and Finite-Lived Intangible Assets, Net By Type [Abstract]

Schedule of fixed assets by category

The following table summarizes our fixed assets by category at December 31:

(in thousands)	2016			2015
Software	$	124,093		$	110,405
Equipment	11,771			10,679
Land, buildings, and building improvements	7,627			7,627
Leasehold improvements	1,375			1,171
Projects in progress	17,812			17,719
Construction in progress	9,622			—
Total fixed assets, gross	172,300			147,601
Less: Accumulated depreciation	(103,158		)	(88,514		)
Fixed assets, net	$	69,142		$	59,087