PROPERTY AND EQUIPMENT, NET Property and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 57,386us-gaap_PropertyPlantAndEquipmentGross		$ 60,754us-gaap_PropertyPlantAndEquipmentGross
Less: acccumulated depreciation and amortization	48,491		50,914
Property and equipment, net	8,895us-gaap_PropertyPlantAndEquipmentNet		9,840us-gaap_PropertyPlantAndEquipmentNet
Capital expenditure not yet placed in service	240		1,006
Capital lease obligation, current	82us-gaap_CapitalLeaseObligationsCurrent		77us-gaap_CapitalLeaseObligationsCurrent
Capital lease obligation, non-current	303		348
Capital expenditures for landlord funded tenant improvements	0	630
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,223		8,806
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,588		5,352
Capitalized software costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24,425		25,228
Leasehold and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 20,150		$ 21,368

Property Plant and Equipment, Capital Expenditures Not Yet Placed in Service

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Net cash outflow or inflow from monetary allowance granted by the landlord to a tenant to entice tenant to move into landlords building which will enable the tenant to prepare the leased premises for tenants occupancy.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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