Goodwill (Details) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2016
USD ($)
contract
$ / shares
|
Sep. 30, 2016
USD ($)
$ / shares
|
Sep. 29, 2016
$ / shares
|
Dec. 31, 2015
USD ($)
|
|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||||
| Goodwill | $ 216,930,000 | $ 216,930,000 | $ 216,930,000 | |
| Number of contracts not renewed | contract | 2 | |||
| Share price | $ / shares | $ 15.23 | $ 15.23 | $ 27.63 | |
| Goodwill impairment | $ 0 |