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Condensed Consolidated Statements Of Equity (USD $) In Thousands | Total | Common Stock [Member] | Capital Surplus [Member] | Accumulated Other Comprehensive (Loss) Income [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Noncontrolling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2012 |  | $ 1,357,179 | $ 680 | $ 416,104 | $ (81,040) | [1] | $ 1,022,239 | $ (11,903) | $ 11,099
Net income including noncontrolling interests |  | 30,718 |  |  |  |  | 30,167 |  | 551
Other comprehensive income |  | 480 |  |  | 480 | [1] |  |  |
Common stock issued under share-based compensation plans | [2] | 1,222 | 2 | 1,179 |  |  |  | 41 |
Common stock issued under employee stock purchase plan |  | 671 |  | 671 |  |  |  |  |
Distributions to noncontrolling interests |  | (1,050) |  |  |  |  |  |  | (1,050)
Share-based compensation expense |  | 2,265 |  | 2,265 |  |  |  |  |
Balance at Mar. 31, 2013 |  | 1,391,485 | 682 | 420,219 | (80,560) | [1] | 1,052,406 | (11,862) | 10,600
Balance at Dec. 31, 2013 |  | 1,479,626 | 676 | 408,083 | (65,777) | [1] | 1,133,873 | (10,590) | 13,361
Net income including noncontrolling interests |  | 41,842 |  |  |  |  | 41,261 |  | 581
Other comprehensive income |  | 445 |  |  | 445 | [1] |  |  |
Common stock issued under share-based compensation plans | [2] | 7,390 | 4 | 7,098 |  |  |  | 288 |
Common stock issued under employee stock purchase plan |  | 866 |  | 866 |  |  |  |  |
Common stock dividends |  | (5,353) |  |  |  |  | (5,353) |  |
Distributions to noncontrolling interests |  | (900) |  |  |  |  |  |  | (900)
Share-based compensation expense |  | 2,598 |  | 2,598 |  |  |  |  |
Balance at Mar. 31, 2014 |  | $ 1,526,514 | $ 680 | $ 418,645 | $ (65,332) | [1] | $ 1,169,781 | $ (10,302) | $ 13,042
[1] | Represents cumulative foreign currency translation adjustments and post retirement liability adjustments.
[2] | Includes the tax benefit associated with share-based compensation of $4.9 million and $0.4 million for the three months ended March 31, 2014 and 2013, respectively.

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