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v3.10.0.1

Consolidated Statements Of Shareholders' Equity - USD ($) $ in Millions | Total | Common Stock [Member] | Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | ---
Balance, shares at Dec. 31, 2015 |  | 20,132,972 |  |  |
Balance at Dec. 31, 2015 | $ 928.1 | $ 0.2 | $ 100.8 | $ 827.2 | $ (0.1)
Net income | 332.8 | 0.0 | 0.0 | 332.8 | 0.0
Other comprehensive income (loss) | (0.1) | 0.0 | 0.0 | 0.0 | (0.1)
Stock-based compensation | $ 7.4 | $ 0.0 | 7.4 | 0.0 | 0.0
Restricted stock awards, net of forfeitures, shares |  | 6,643 |  |  |
Repurchase of common stock, shares | (666,330) | (666,330) |  |  |
Repurchase of common stock | $ (121.7) | $ 0.0 | (3.7) | (118.0) | 0.0
Restricted stock units converted to common stock, shares |  | 404,096 |  |  |
Tax benefits from stock-based compensation plans | 27.2 | $ 0.0 | 27.2 | 0.0 | 0.0
Balance, shares at Dec. 31, 2016 |  | 19,877,381 |  |  |
Balance at Dec. 31, 2016 | 1,173.7 | $ 0.2 | 131.7 | 1,042.0 | (0.2)
Net income | 470.2 | 0.0 | 0.0 | 470.2 | 0.0
Stock-based compensation | $ 15.4 | $ 0.0 | 15.4 | 0.0 | 0.0
Restricted stock awards, net of forfeitures, shares |  | 8,092 |  |  |
Repurchase of common stock, shares | (610,260) | (610,260) |  |  |
Repurchase of common stock | $ (123.5) | $ 0.0 | (1.6) | (121.9) | 0.0
Restricted stock units converted to common stock, shares |  | 34,836 |  |  |
Balance, shares at Dec. 31, 2017 | 19,310,049 | 19,310,049 |  |  |
Balance at Dec. 31, 2017 | $ 1,535.8 | $ 0.2 | 145.5 | 1,390.3 | (0.2)
Net income | 574.0 | 0.0 | 0.0 | 574.0 | 0.0
Other comprehensive income (loss) | (0.1) | 0.0 | 0.0 | 0.0 | (0.1)
Stock-based compensation | $ 10.3 | $ 0.0 | 10.3 | 0.0 | 0.0
Restricted stock awards, net of forfeitures, shares |  | 3,998 |  |  |
Repurchase of common stock, shares | (342,928) | (342,928) |  |  |
Repurchase of common stock | $ (129.1) | $ 0.0 | (0.9) | (128.2) | 0.0
Restricted stock units converted to common stock, shares |  | 1,439 |  |  |
Balance, shares at Dec. 31, 2018 | 18,972,558 | 18,972,558 |  |  |
Balance at Dec. 31, 2018 | $ 1,990.9 | $ 0.2 | $ 154.9 | $ 1,836.1 | $ (0.3)

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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109245112&loc=d3e23524-113945 + Details
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