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Condensed Consolidated Statement of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | AOCI Attributable to Parent
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2017 |  | 27,572 |  |  |
Beginning balance at Dec. 31, 2017 | $ 486,104 | $ 275 | $ 292,494 | $ 211,080 | $ (17,745)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |  |  |
Net loss | (30,494) |  |  | (30,494) |
Cash dividends declared | (3,884) |  |  | (3,884) |
Share-based compensation expense (in shares) |  | 165 |  |  |
Share-based compensation expense | 2,334 | $ 2 | 2,332 |  |
Shares issued for option exercises (in shares) |  | 27 |  |  |
Shares issued for option exercises | 274 |  | 274 |  |
Restricted shares and performance shares forgiven for taxes and forfeited (in shares) |  | (35) |  |  |
Restricted shares and performance shares forgiven for taxes and forfeited | (720) |  | (720) |  |
Change in fair value of interest rate swap, net of tax of $1,993 | 0 |  |  |  |
Foreign currency translation loss | (10,316) |  |  |  | (10,316)
Ending balance (in shares) at Jun. 30, 2018 |  | 27,729 |  |  |
Ending balance at Jun. 30, 2018 | 443,314 | $ 277 | 294,380 | 176,718 | (28,061)
Beginning balance (in shares) at Mar. 31, 2018 |  | 27,666 |  |  |
Beginning balance at Mar. 31, 2018 | 484,859 | $ 276 | 293,704 | 203,159 | (12,280)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |  |  |
Net loss | (24,511) |  |  | (24,511) |
Cash dividends declared | (1,930) |  |  | (1,930) |
Share-based compensation expense (in shares) |  | 78 |  |  |
Share-based compensation expense | 1,078 | $ 1 | 1,077 |  |
Shares issued for option exercises (in shares) |  | 4 |  |  |
Shares issued for option exercises | 32 |  | 32 |  |
Restricted shares and performance shares forgiven for taxes and forfeited (in shares) |  | (19) |  |  |
Restricted shares and performance shares forgiven for taxes and forfeited | (433) |  | (433) |  |
Change in fair value of interest rate swap, net of tax of $1,993 | 0 |  |  |  |
Foreign currency translation loss | (15,781) |  |  |  | (15,781)
Ending balance (in shares) at Jun. 30, 2018 |  | 27,729 |  |  |
Ending balance at Jun. 30, 2018 | 443,314 | $ 277 | 294,380 | 176,718 | (28,061)
Beginning balance (in shares) at Dec. 31, 2018 |  | 42,104 |  |  |
Beginning balance at Dec. 31, 2018 | 418,295 | $ 421 | 511,545 | (62,046) | (31,625)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |  |  |
Net loss | (25,297) |  |  | (25,297) |
Cash dividends declared | (5,934) |  |  | (5,934) |
Share-based compensation expense (in shares) |  | 281 |  |  |
Share-based compensation expense | $ 1,979 | $ 3 | 1,976 |  |
Shares issued for option exercises (in shares) | 0 |  |  |  |
Restricted shares and performance shares forgiven for taxes and forfeited (in shares) |  | (18) |  |  |
Restricted shares and performance shares forgiven for taxes and forfeited | $ (141) |  | (141) |  |
Change in fair value of interest rate swap, net of tax of $1,993 | (10,818) |  |  |  | (10,818)
Foreign currency translation loss | (172) |  |  |  | (172)
Ending balance (in shares) at Jun. 30, 2019 |  | 42,367 |  |  |
Ending balance at Jun. 30, 2019 | 377,861 | $ 424 | 513,380 | (93,328) | (42,615)
Beginning balance (in shares) at Mar. 31, 2019 |  | 42,367 |  |  |
Beginning balance at Mar. 31, 2019 | 394,840 | $ 424 | 512,274 | (83,639) | (34,219)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |  |  |
Net loss | (6,697) |  |  | (6,697) |
Cash dividends declared | (2,992) |  |  | (2,992) |
Share-based compensation expense | 1,106 |  | 1,106 |  |
Change in fair value of interest rate swap, net of tax of $1,993 | (6,962) |  |  |  | (6,962)
Foreign currency translation loss | (1,434) |  |  |  | (1,434)
Ending balance (in shares) at Jun. 30, 2019 |  | 42,367 |  |  |
Ending balance at Jun. 30, 2019 | $ 377,861 | $ 424 | $ 513,380 | $ (93,328) | $ (42,615)

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