Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Estimated Useful Lives of Assets

We compute depreciation and amortization using the straight-line method over the following estimated useful lives of the assets:

Leasehold improvements	The shorter of the estimated useful life or the life of the lease
Telecommunications, network and computing equipment	3–5 years
Computer software	3 years
Furniture, fixtures and office equipment	7 years