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v3.3.0.814

Equity (Details) - USD ($) $ / shares in Units, $ in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 261 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 20, 2015 | Oct. 31, 2015 | Sep. 30, 2015 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Oct. 30, 2015 | Dec. 31, 2014
Equity |  |  |  |  |  |  |  |  |  |
Preferred stock, par value (in dollars per share) |  |  | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 |  | $ 0.001
Common stock, par value (in dollars per share) |  |  | $ 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | $ 0.001 |  | $ 0.001
Common stock dividend quarterly declared and paid per share (in dollars per share) |  |  |  | $ 0.40 | $ 0.35 | $ 1.20 | $ 1.05 |  |  |
Share Repurchase Plan |  |  |  |  |  |  |  |  |  |
Number of shares repurchased under stock repurchase plan |  | 241,511 |  | 2,514,654 |  | 5,953,054 |  | 22,100,000 |  |
Average costs per share |  |  |  | $ 56.60 |  | $ 57.50 |  | $ 30.93 |  |
Value of shares repurchased |  |  |  | $ 142.3 |  | $ 342.3 |  |  |  |
Common Stock and Additional Paid-In (in Shares) |  |  |  |  |  |  |  |  |  |
Stock-based compensation ( in shares) |  |  |  |  |  | 271,438 |  |  |  |
Stock options exercised (in shares) |  |  |  | 9,512 |  | 218,524 |  |  |  |
Repurchase of common shares (in shares) |  | (241,511) |  | (2,514,654) |  | (5,953,054) |  | (22,100,000) |  |
Total ( in shares) |  |  |  | (2,505,142) |  | (5,463,092) |  |  |  |
Common Stock and Additional Paid-In (in Amount) |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 5.2 |  | $ 17.6 |  |  |  |
Stock options exercised |  |  |  | 0.4 |  | 11.0 |  |  |  |
Value of shares repurchased |  |  |  | (142.3) |  | (342.3) |  |  |  |
Total |  |  |  | $ (136.7) |  | $ (313.7) |  |  |  |
Weighted Average Exercise/(Purchase) Price |  |  |  |  |  |  |  |  |  |
Stock options exercised (in dollars per share) |  |  |  | $ 42.87 |  | $ 52.00 |  |  |  |
Weighted Average Grant Date Fair Value |  |  |  |  |  |  |  |  |  |
Dividends paid |  |  |  | $ 29.3 | $ 27.3 | $ 89.7 | $ 81.7 |  |  |
Subsequent event |  |  |  |  |  |  |  |  |  |
Share Repurchase Plan |  |  |  |  |  |  |  |  |  |
Increase in authorized number of shares to be repurchased | 7,500,000 |  |  |  |  |  |  |  |  |
Remaining number of common stock authorized for repurchase under stock repurchase program (in shares) |  |  |  |  |  |  |  |  | 8,400,000 |
Weighted Average Grant Date Fair Value |  |  |  |  |  |  |  |  |  |
Common stock quarterly dividend per share (in dollars per share) | $ 0.40 |  |  |  |  |  |  |  |  |
Pending settlement |  |  |  |  |  |  |  |  |  |
Share Repurchase Plan |  |  |  |  |  |  |  |  |  |
Number of shares repurchased under stock repurchase plan |  |  | 526,800 |  |  |  |  |  |  |
Value of shares repurchased |  |  | $ 28.4 |  |  |  |  |  |  |
Common Stock and Additional Paid-In (in Shares) |  |  |  |  |  |  |  |  |  |
Repurchase of common shares (in shares) |  |  | (526,800) |  |  |  |  |  |  |
Common Stock and Additional Paid-In (in Amount) |  |  |  |  |  |  |  |  |  |
Value of shares repurchased |  |  | $ (28.4) |  |  |  |  |  |  |
Restricted stock |  |  |  |  |  |  |  |  |  |
Changes in unvested restricted stock grants and RSUs |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 12,719 |  |  |  |
RSU's |  |  |  |  |  |  |  |  |  |
Changes in unvested restricted stock grants and RSUs |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 557,760 |  |  |  |
Weighted Average Grant Date Fair Value |  |  |  |  |  |  |  |  |  |
Dividend equivalents |  |  |  |  |  | $ 1.0 |  |  |  |
Performance targets Period |  |  |  |  |  | 3 years |  |  |  |
RSU's | Performance-based |  |  |  |  |  |  |  |  |  |
Changes in unvested restricted stock grants and RSUs |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 225,450 |  |  |  |
Unvested RSUs and Restricted Stock |  |  |  |  |  |  |  |  |  |
Changes in unvested restricted stock grants and RSUs |  |  |  |  |  |  |  |  |  |
Unvested at the beginning of the period (in shares) |  | 1,212,490 |  |  |  | 846,760 |  |  |  |
Granted (in shares) |  |  |  |  |  | 570,479 |  |  |  |
Vested (in shares) |  |  |  |  |  | (105,119) |  |  |  |
Canceled (in shares) |  |  |  |  |  | (99,630) |  |  |  |
Unvested at the end of the period (in shares) |  |  | 1,212,490 | 1,212,490 |  | 1,212,490 |  | 1,212,490 |  |
Shares reserved for future grants (all plans) |  |  |  |  |  | 2,096,472 |  |  |  |
Weighted Average Grant Date Fair Value |  |  |  |  |  |  |  |  |  |
Unvested at the beginning of the period (in dollars per share) |  | $ 63.90 |  |  |  | $ 65.10 |  |  |  |
Granted (in dollars per shares) |  |  |  |  |  | 59.42 |  |  |  |
Vested (in dollars per shares) |  |  |  |  |  | 59.46 |  |  |  |
Canceled (in dollars per shares) |  |  |  |  |  | 58.56 |  |  |  |
Unvested at the end of the period (in dollars per shares) |  |  | $ 63.90 | $ 63.90 |  | $ 63.90 |  | $ 63.90 |  |

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