Commitments and Contingencies - Satellite Leases and Rent Expense (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Commitments and Contingencies | |||
| Satellite-related expenses | $ 160.8 | $ 178.8 | $ 181.2 |
| Total rent expense | $ 22.0 | $ 21.3 | $ 22.6 |