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Condensed Consolidated Statement Of Changes In Redeemable Noncontrolling Interest And Equity - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Retained Earnings | Treasury Shares | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2016 | $ 468,417 | $ 211 | $ 438,489 | $ 32,524 | $ (2,899) | $ 92
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Restricted stock grants |  | 3 | (3) |  |  |
Employee Stock Purchase Plan | 463 | 1 | 462 |  |  |
Share award amortization | 2,629 |  | 2,629 |  |  |
Cancellation of restricted stock | 0 |  | 18 |  | (18) |
Purchase of treasury shares | (51) |  |  |  | (51) |
Net loss | (8,859) |  |  | (8,859) |  |
Net loss attributable to redeemable noncontrolling interest | 452 |  |  | 452 |  |
Currency translation adjustments, net of tax | (2) |  |  |  |  | (2)
Ending Balance at Jun. 30, 2017 | 463,049 | $ 215 | $ 441,595 | $ 24,117 | $ (2,968) | $ 90
Beginning Balance at Dec. 31, 2016 | 4,221 |  |  |  |  |
Increase (Decrease) in Temporary Equity [Roll Forward] |  |  |  |  |  |
Net loss attributable to redeemable noncontrolling interest | (452) |  |  |  |  |
Ending Balance at Jun. 30, 2017 | $ 3,769 |  |  |  |  |

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