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Consolidated Statements of Changes in Shareholders' Equity (Deficit) - USD ($) $ in Millions | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Deficit [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Mar. 31, 2013 | $ 18.2 | $ 227.3 | $ 101.1 | $ (357.6) |  | $ 47.4
Net income | 99.5 |  |  | 99.5 |  |
Other comprehensive income (loss) | (14.3) |  |  |  |  | (14.3)
Stock-based compensation | 8.5 | 1.0 | 7.5 |  |  |
Tax benefit from stock options exercised | 5.6 |  | 5.6 |  |  |
Equity awards exercised | 29.3 | 3.3 | 26.0 |  |  |
Dividends declared | (323.7) |  |  | (323.7) |  |
Treasury stock purchased | (22.1) |  |  |  | $ (22.1) |
Treasury stock retired |  | (1.0) | (0.5) | (20.6) | 22.1 |
Ending balance at Mar. 31, 2014 | (199.0) | 230.6 | 139.7 | (602.4) |  | 33.1
Net income | 291.3 |  |  | 291.3 |  |
Other comprehensive income (loss) | (33.5) |  |  |  |  | (33.5)
Stock-based compensation | 9.2 | 0.6 | 8.6 |  |  |
Tax benefit from stock options exercised | 1.4 |  | 1.4 |  |  |
Equity awards exercised | 4.1 | 0.4 | 3.7 |  |  |
Dividends declared | (267.0) |  |  | (267.0) |  |
Treasury stock purchased | (9.1) |  |  |  | (9.1) |
Treasury stock retired |  | (0.4) | (0.2) | (8.5) | 9.1 |
Ending balance at Mar. 31, 2015 | (202.6) | 231.2 | 153.2 | (586.6) |  | (0.4)
Net income | 244.4 |  |  | 244.4 |  |
Other comprehensive income (loss) | 1.2 |  |  |  |  | 1.2
Stock-based compensation | 10.3 | 0.8 | 9.5 |  |  |
Tax benefit from stock options exercised | 0.4 |  | 0.4 |  |  |
Equity awards exercised | 2.1 | 0.2 | 1.9 |  |  |
Dividends declared | (258.7) |  |  | (258.7) |  |
Treasury stock purchased | (22.3) |  |  |  | (22.3) |
Treasury stock retired |  | (0.8) | (0.6) | (20.9) | $ 22.3 |
Ending balance at Mar. 31, 2016 | $ (225.2) | $ 231.4 | $ 164.4 | $ (621.8) |  | $ 0.8

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- Definition This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415241&loc=d3e4534-113899 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11149-113907 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11178-113907 + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23524-113945 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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