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Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands | Stockholders' Equity of the Company Common Stock [Member] | Stockholders' Equity of the Company Treasury Stock [Member] | Stockholders' Equity of the Company Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) | Stockholders' Equity of the Company Retained Earnings [Member] | Noncontrolling Interest [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance, value at Dec. 31, 2016 |  |  |  | $ (126,964) |  |  |
Net income |  |  |  |  |  |  | $ 20,167
Dividends distributed to noncontrolling interest |  |  |  |  |  |  | (945)
Foreign currency translation adjustments |  |  |  |  |  |  | $ 6,228
Ending balance, value at Mar. 31, 2017 |  |  |  | (112,515) |  |  |
Preferred stock beginning balance, share at Dec. 31, 2017 |  |  |  |  |  |  | 0
Common stock beginning balance, share at Dec. 31, 2017 | 45,862,000 |  |  |  |  |  | 45,861,959
Beginning balance, value at Dec. 31, 2017 | $ 459 | $ (615,677) | $ 351,725 | (102,304) | $ 721,664 | $ 6,978 | $ 362,845
Net income |  |  |  |  | 4,591 | 1,341 | 5,932
Dividends to shareholders |  |  |  |  | (12,414) |  | (12,414)
Dividends distributed to noncontrolling interest |  |  |  |  |  | (945) | (945)
Foreign currency translation adjustments |  |  |  | (5,700) |  | 101 | (5,599)
Derivatives valuation, net of tax |  |  |  | (7) |  |  | (7)
Vesting of restricted stock units, share | 117,000 |  |  |  |  |  |
Vesting of restricted stock units, value | $ 1 | 1,939 | (3,662) |  |  |  | (1,722)
Equity-based compensation expense |  |  | 3,609 |  |  |  | 3,609
Other, net of tax. |  |  |  | 108 |  |  | $ 108
Preferred stock ending balance, share at Mar. 31, 2018 |  |  |  |  |  |  | 0
Common stock ending balance, share at Mar. 31, 2018 | 45,979,000 |  |  |  |  |  | 45,979,290
Ending balance, value at Mar. 31, 2018 | $ 460 | $ (613,738) | $ 351,672 | $ (107,903) | 707,257 | $ 7,475 | $ 345,223
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  | $ (6,584) |  | $ (6,584)

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