Fixed Assets, Net (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Components of Fixed Assets, Net

Fixed assets, net consisted of the following (in thousands):

	December 31, 2016			December 31, 2015
Computer and communications equipment	$	130,538		$	147,385
Software, including software development costs		130,397			140,997
Leasehold improvements and other fixed assets		154,602			137,795
		415,537			426,177
Less: accumulated depreciation and amortization		(249,670	)		(278,672	)
Fixed assets, net	$	165,867		$	147,505