Commitments (Details) $ in Thousands |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2016
USD ($)
Installment
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2014
USD ($)
|
|
| Summary of minimum annual rental commitments [Abstract] | ||||
| 2017 | $ 4,213 | |||
| 2018 | 3,936 | |||
| 2019 | 3,565 | |||
| 2020 | 2,345 | |||
| 2021 | 3,777 | |||
| Total | 17,836 | |||
| Rent Expense | $ 7,613 | $ 7,730 | $ 8,738 | |
| Extraordinary dividend declared | $ 21,000 | |||
| Extraordinary dividend special tax rate | 15.00% | |||
| Proceeds from association a special distribution | $ 1,672 | |||
| Number of installments for dividend receivable in 2016 | Installment | 3 | |||