CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Statement Of Income And Comprehensive Income [Abstract] | ||||
| NET INCOME (LOSS) | $ (1,500) | $ 7,047 | $ 22,251 | $ (3,410) |
| OTHER COMPREHENSIVE INCOME, NET OF TAX: | ||||
| Unrealized gain (loss) on available-for-sale securities, net of tax of $92, $2, $139 and $(6), respectively | (171) | (5) | (256) | (9) |
| Employee benefit plan: | ||||
| Actuarial gain (loss), net of tax of $(5), none, $195, and none, respectively | (5) | (358) | ||
| Amortization of prior service cost and actuarial loss for retirement plan included in net periodic pension costs, net of tax of $141, $157, $443 and $401, respectively | 278 | 279 | 814 | 713 |
| Net change for employee benefit plan | 273 | 279 | 456 | 713 |
| Change in cumulative foreign currency translation adjustment | 12 | 32 | ||
| TOTAL OTHER COMPREHENSIVE INCOME | 114 | 274 | 232 | 704 |
| COMPREHENSIVE INCOME (LOSS) | $ (1,386) | $ 7,321 | $ 22,483 | $ (2,706) |