Shareholders' Equity (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands |
12 Months Ended |
|
|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Mar. 02, 2017 |
Dec. 09, 2016 |
| Dividends Payable, Date Declared |
Mar. 02, 2017
|
|
|
|
|
| Dividends Payable, Amount Per Share |
|
|
|
|
$ 0.08
|
| Dividends Payable, Date of Record |
May 12, 2017
|
|
|
|
|
| Dividends Payable, Date to be Paid |
Jun. 02, 2017
|
|
|
|
|
| Dividends Payable, Current |
$ 1,763
|
|
|
|
|
| Stock Repurchase Program, Number of Shares Authorized to be Repurchased |
2,500,000
|
|
|
|
|
| Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year |
$ 371
|
|
|
|
|
| Fiscal year 2016 |
|
|
|
|
|
| Dividends Payable, Date Declared |
Dec. 09, 2016
|
|
|
|
|
| Dividends Payable, Date of Record |
Feb. 10, 2017
|
|
|
|
|
| Dividends Payable, Date to be Paid |
Mar. 03, 2017
|
|
|
|
|
| Special Dividend Declared December 11, 2014 |
|
|
|
|
|
| Dividends |
|
$ 50,148
|
|
|
|
| Dividend paid, per share |
|
$ 2.25
|
|
|
|
| Subsequent Event [Member] |
|
|
|
|
|
| Dividends Payable, Amount Per Share |
|
|
|
$ 0.08
|
|
| Common Stock [Member] | Series A |
|
|
|
|
|
| Total cost of share purchased |
|
$ 3,146
|
$ 4,974
|
|
|
| Treasury Stock [Member] | Series A |
|
|
|
|
|
| Treasury stock purchases, shares |
|
472,245
|
449,436
|
|
|