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Consolidated Statement of Shareholders' Equity. - USD ($) $ in Millions | Common Stock | Additional Paid-In Capital | Deferred Compensation Equity | Accumulated Other Comprehensive Income (loss). | Retained Earnings | Shares in Treasury | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at the beginning of the period at Dec. 31, 2014 |  | $ 78.7 | $ 247.8 | $ 6.0 | $ (61.8) | $ 2,134.4 | $ (200.1) | $ 2,205.0
Balance (in shares) at Dec. 31, 2014 |  | 64,691,059 |  |  |  |  | 13,723,201 |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  | 134.3
Other comprehensive income (loss), net of tax |  |  |  |  | (7.1) |  |  | (7.1)
Cash dividends - $0.94 and $0.60 for the year ended 2015 and the six months ended June 30, 2016, respectively |  |  |  |  |  |  |  | (33.1)
Balance at the end of the period at Jun. 30, 2015 |  |  |  |  | (68.9) |  |  |
Balance at the beginning of the period at Dec. 31, 2014 |  | $ 78.7 | 247.8 | 6.0 | (61.8) | 2,134.4 | $ (200.1) | 2,205.0
Balance (in shares) at Dec. 31, 2014 |  | 64,691,059 |  |  |  |  | 13,723,201 |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 319.7 |  | 319.7
Other comprehensive income (loss), net of tax |  |  |  |  | (25.3) |  |  | (25.3)
Cash dividends - $0.94 and $0.60 for the year ended 2015 and the six months ended June 30, 2016, respectively |  |  |  |  |  | (72.3) |  | (72.3)
Repurchases of Common Stock |  |  |  |  |  |  | $ (137.2) | (137.2)
Repurchases of Common Stock (in Shares) |  | (1,496,411) |  |  |  |  | 1,496,411 |
Issuances for stock based compensation (1) | [1] |  | 45.6 | 2.0 |  |  | $ 9.9 | 57.5
Issuances for stock based compensation (in shares) | [1] | 856,952 |  |  |  |  | (836,371) |
Balance at the end of the period at Dec. 31, 2015 |  | $ 78.7 | 293.4 | 8.0 | (87.1) | 2,381.8 | $ (327.4) | $ 2,347.4
Balance (in shares) at Dec. 31, 2015 |  | 64,051,600 |  |  |  |  | 14,383,241 | 64,051,600
Balance at the beginning of the period at Mar. 31, 2015 |  |  |  |  | (81.8) |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  | $ 94.9
Other comprehensive income (loss), net of tax |  |  |  |  | 12.9 |  |  | 12.9
Cash dividends - $0.94 and $0.60 for the year ended 2015 and the six months ended June 30, 2016, respectively |  |  |  |  |  |  |  | (16.4)
Balance at the end of the period at Jun. 30, 2015 |  |  |  |  | (68.9) |  |  |
Balance at the beginning of the period at Dec. 31, 2015 |  | $ 78.7 | 293.4 | 8.0 | (87.1) | 2,381.8 | $ (327.4) | 2,347.4
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 183.7 |  | 183.7
Other comprehensive income (loss), net of tax |  |  |  |  | (4.3) |  |  | (4.3)
Cash dividends - $0.94 and $0.60 for the year ended 2015 and the six months ended June 30, 2016, respectively |  |  |  |  |  | (39.0) |  | (39.0)
Repurchases of Common Stock |  |  |  |  |  |  | $ (41.5) | (41.5)
Repurchases of Common Stock (in Shares) |  | (459,662) |  |  |  |  | 459,662 |
Issuances for stock based compensation (1) | [1] |  | 25.5 | 2.4 |  |  | $ 15.9 | 43.8
Issuances for stock based compensation (in shares) | [1] | 808,705 |  |  |  |  | (809,293) |
Balance at the end of the period at Jun. 30, 2016 |  | $ 78.7 | 318.9 | 10.4 | (91.4) | 2,526.5 | $ (353.0) | $ 2,490.1
Balance (in shares) at Jun. 30, 2016 |  | 64,400,643 |  |  |  |  | 14,033,610 | 64,400,643
Balance at the beginning of the period at Mar. 31, 2016 |  |  |  |  | (76.7) |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  | $ 115.2
Other comprehensive income (loss), net of tax |  |  |  |  | (14.7) |  |  | (14.7)
Cash dividends - $0.94 and $0.60 for the year ended 2015 and the six months ended June 30, 2016, respectively |  |  |  |  |  |  |  | (19.5)
Balance at the end of the period at Jun. 30, 2016 |  | $ 78.7 | $ 318.9 | $ 10.4 | $ (91.4) | $ 2,526.5 | $ (353.0) | $ 2,490.1
Balance (in shares) at Jun. 30, 2016 |  | 64,400,643 |  |  |  |  | 14,033,610 | 64,400,643
[1] | Issuances for stock based compensation includes shares issued from treasury to cover stock option exercises, restricted and performance share releases, net of shares repurchased to cover employee taxes

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