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Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified | Total | Common Stock | Capital in Excess of Par Value | Retained Earnings | Accumulated Other Comprehensive Loss | World Fuel Shareholders' Equity | Noncontrolling Interest Equity
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2011 | $ 1,346,718 | $ 712 | $ 502,551 | $ 836,222 | $ (6,524) | $ 1,332,961 | $ 13,757
Balance (in shares) at Dec. 31, 2011 |  | 71,154 |  |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |
Net income | 156,326 |  |  | 146,509 |  | 146,509 | 9,817
Cash dividends declared | (8,019) |  |  | (8,019) |  | (8,019) |
Distribution of noncontrolling interest | (1,322) |  |  |  |  |  | (1,322)
Amortization of share-based payment awards | 9,800 |  | 9,800 |  |  | 9,800 |
Issuance of common stock related to share-based payment awards, including income tax benefit of $2,692 and $1,519 for the nine months ended September 30, 2013 and 2012 respectively | 4,248 | 9 | 4,239 |  |  | 4,248 |
Issuance of common stock related to share-based payment awards (in shares) |  | 967 |  |  |  |  |
Purchases of common stock tendered by employees to satisfy the required withholding taxes related to share-based payment awards | (4,730) |  | (4,730) |  |  | (4,730) |
Purchases of common stock tendered by employees to satisfy the required withholding taxes related to share-based payment awards (in shares) |  | (34) |  |  |  |  |
Other comprehensive loss | (8,731) |  |  |  | (8,731) | (8,731) |
Balance at Sep. 30, 2012 | 1,494,290 | 721 | 511,860 | 974,712 | (15,255) | 1,472,038 | 22,252
Balance (in shares) at Sep. 30, 2012 |  | 72,087 |  |  |  |  |
Balance at Dec. 31, 2012 | 1,541,624 | 721 | 517,589 | 1,014,882 | (16,018) | 1,517,174 | 24,450
Balance (in shares) at Dec. 31, 2012 | 72,147 | 72,147 |  |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |
Net income | 153,765 |  |  | 151,213 |  | 151,213 | 2,552
Cash dividends declared | (8,013) |  |  | (8,013) |  | (8,013) |
Investment by noncontrolling interest | 10,019 |  |  |  |  |  | 10,019
Distribution of noncontrolling interest | (14,497) |  |  |  |  |  | (14,497)
Amortization of share-based payment awards | 12,371 |  | 12,371 |  |  | 12,371 |
Issuance of common stock related to share-based payment awards, including income tax benefit of $2,692 and $1,519 for the nine months ended September 30, 2013 and 2012 respectively | 2,692 | 7 | 2,685 |  |  | 2,692 |
Issuance of common stock related to share-based payment awards (in shares) |  | 681 |  |  |  |  |
Purchases of common stock tendered by employees to satisfy the required withholding taxes related to share-based payment awards | (6,645) |  | (6,645) |  |  | (6,645) |
Purchases of common stock tendered by employees to satisfy the required withholding taxes related to share-based payment awards (in shares) |  | (15) |  |  |  |  |
Purchases of common stock | (20,000) | (5) | (19,995) |  |  | (20,000) |
Purchases of common stock (in shares) |  | (536) |  |  |  |  |
Other comprehensive loss | (9,060) |  |  |  | (9,060) | (9,060) |
Balance at Sep. 30, 2013 | $ 1,662,256 | $ 723 | $ 506,005 | $ 1,158,082 | $ (25,078) | $ 1,639,732 | $ 22,524
Balance (in shares) at Sep. 30, 2013 | 72,277 | 72,277 |  |  |  |  |

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