| Component: (Network and Table) | |
|---|---|
| Network | 2310301 - Disclosure - Furniture, Equipment and Leasehold Improvements, Net (Tables) (http://www.abglobal.com/role/FurnitureEquipmentAndLeaseholdImprovementsNetTables) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001109448 (http://www.sec.gov/CIK) |
| Property, Plant and Equipment [Abstract] | Period [Axis] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2016-01-01 - 2016-12-31 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Furniture, Equipment and Leasehold Improvement, Net | Furniture, equipment and leasehold improvements, net consist of:
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