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Share-based Payments (Tables) | 9 Months Ended
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Dec. 31, 2017
Share-based Payments [Abstract] |
Summary of Black-Scholes option pricing model assumptions used to derive weighted average fair value of stock options granted | The following assumptions were used to derive the weighted average fair value of the stock options granted:
|  | Nine Months Ended December 31, |
|  | 2017 |  |  | 2016 |
Weighted average risk free interest rate |  |  | 1.91 | % |  |  | 1.38 | %
Weighted average expected holding period (years) |  |  | 5.82 |  |  |  | 5.84 |
Weighted average expected volatility |  |  | 47.31 | % |  |  | 47.42 | %
Weighted average expected dividend yield |  |  | - |  |  |  | - |
Weighted average fair value of options granted |  | $ | 12.66 |  |  | $ | 13.07 |
Summary of stock option transactions | The following is a summary of stock option transactions:
|  | Number of Shares |  |  | Weighted Average Exercise Price |
Outstanding at March 31, 2017 |  |  | 1,036,359 |  |  | $ | 14.92 |
Granted |  |  | 169,000 |  |  | $ | 27.32 |
Exercised |  |  | (28,951 | ) |  | $ | 10.15 |
Forfeited |  |  | (5,967 | ) |  | $ | 28.55 |
Outstanding at December 31, 2017 |  |  | 1,170,441 |  |  | $ | 16.76 |
Schedule of restricted stock units activity | The following is a summary of non-vested RSUs:
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Non-vested at March 31, 2017 |  |  | 126,277 |  |  | $ | 28.26 |
Granted |  |  | 77,854 |  |  | $ | 27.70 |
Vested |  |  | (63,868 | ) |  | $ | 27.21 |
Forfeited |  |  | (1,434 | ) |  | $ | 28.37 |
Non-vested at December 31, 2017 |  |  | 138,829 |  |  | $ | 28.43 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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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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