Schedule of Balances Related to Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property Plant And Equipment [Abstract]
Land	$ 0	$ 3,200
Building and leasehold improvements	2,300	25,300
Equipment and furniture	89,600	97,200
Computer software	92,600	158,200
Property and Equipment, Gross	184,500	283,900
Less accumulated depreciation	(141,793)	(146,438)
Property and equipment, net	$ 42,695	$ 137,455