SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Useful Lives for Property and Equipment) (Details) |
9 Months Ended |
|---|---|
Sep. 30, 2017 | |
| Buildings [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | Up to 35 years |
| Leasehold improvements [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | Shorter of lease term or useful life of the improvement |
| Furniture, fixtures and office equipment [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 5 years |
| Computer hardware and software [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 3 years |