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Stock-Based Compensation (Tables) | 9 Months Ended
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Dec. 31, 2017
Stock-Based Compensation [Abstract] |
Fair market value of stock-based compensation awards | The fair value of stock-based compensation awards granted during the nine months ended December 31, 2017 and 2016 were as follows:
|  | Nine months ended December 31, |
|  | 2017 |  |  | 2016 |
|  | Shares |  |  | Fair Value Per Award |  |  | Shares |  |  | Fair Value Per Award |
Stock options |  |  | 0.2 |  |  | $ | 7.30 |  |  |  | 0.3 |  |  | $ | 4.60 |
Restricted stock awards |  |  | 0.2 |  |  | $ | 15.90 |  |  |  | 0.3 |  |  | $ | 10.03 |
Performance stock awards |  |  | 0.2 |  |  | $ | 15.90 |  |  |  | 0.3 |  |  | $ | 10.00 |
Unrestricted stock awards |  |  | 0.1 |  |  | $ | 16.95 |  |  |  | 0.1 |  |  | $ | 9.38 |
Assumptions used in determining fair value of options | The Company used the following assumptions in determining fair value for stock options:
|  | Nine months ended December 31, |
|  | 2017 |  |  | 2016 |
Expected life of awards in years |  |  | 6.4 |  |  |  | 6.4 |
Risk-free interest rate |  |  | 1.9 | % |  |  | 1.4 | %
Expected volatility of the Company's stock |  |  | 44.3 | % |  |  | 45.5 | %
Expected dividend yield on the Company's stock |  |  | 0.0 | % |  |  | 0.0 | %
Unrecognized compensation cost related to non-vested stock-based compensation awards | As of December 31, 2017, unrecognized compensation expense related to non-vested stock-based compensation awards, which will be amortized over the remaining service periods, was as follows:
|  | Unrecognized Compensation Expense |  |  | Weighted-Average Remaining Service Period in Years |
Stock options |  | $ | 2.6 |  |  |  | 2.7 |
Restricted stock awards |  |  | 6.1 |  |  |  | 2.7 |
Performance stock awards |  |  | 5.2 |  |  |  | 1.9 |
Total |  | $ | 13.9 |  |  |  | 2.4 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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