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Consolidated Statements Of Shareholders' Equity - 9 months ended Sep. 30, 2018 - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member]
--- | --- | --- | --- | --- | ---
Balances, shares at Dec. 31, 2017 | 49,143 | 49,143 |  |  |
Balances, value at Dec. 31, 2017 | $ 1,339,138 | $ 4,914 | $ 634,192 | $ 708,181 | $ (8,149)
Stock-based compensation expense | $ 8,229 | $ 0 | 8,229 | 0 | 0
Shares repurchased and retired, shares | (4,401) | (4,401) |  |  |
Shares repurchased and retired, value | $ (122,053) | $ (440) | (48,913) | (72,700) | 0
Stock options exercised, shares | 187 | 187 |  |  |
Stock options exercised, value | $ 3,463 | $ 19 | 3,444 | 0 | 0
Vesting of restricted stock units, shares | 229 | 229 |  |  |
Vesting of restricted stock units, value | $ 0 | $ 23 | (23) | 0 | 0
Shares withheld for taxes, shares | (28) | (28) |  |  |
Shares withheld for taxes, value | $ (822) | $ (3) | (819) | 0 | 0
Dividends declared | (21,005) | 0 | 0 | (21,005) | 0
Net loss | (4,899) | 0 | 0 | (4,899) | 0
Other comprehensive loss | $ (369) | $ 0 | 0 | 0 | (369)
Balances, shares at Sep. 30, 2018 | 45,130 | 45,130 |  |  |
Balances, value at Sep. 30, 2018 | $ 1,201,682 | $ 4,513 | $ 596,110 | $ 609,577 | $ (8,518)

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