Accrual for Loss Contracts Related to Service (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
USD ($)
| |
| Contractors [Abstract] | |
| Beginning balance | $ 10,050 |
| Change in estimate | (1,071) |
| Reduction for losses realized | (5,745) |
| Ending balance | $ 3,234 |