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Share-Based Compensation (Tables) | 6 Months Ended
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Sep. 30, 2019
Share-based Payment Arrangement [Abstract] |
Summary of Restricted Shares | A summary of the RSUs granted under the Plan is presented below:
RSUs |  | Shares (in thousands) |  | Weighted Average Grant-Date Fair Value
Six Months Ended September 30, 2018 |  |  |  |
Vested and nonvested at March 31, 2018 |  | 393.5 |  |  | $ | 44.13 |
Granted |  | 226.4 |  |  | 30.09 |
Vested and issued |  | (175.8 | ) |  | 43.05 |
Forfeited |  | (31.1 | ) |  | 48.32 |
Vested and nonvested at September 30, 2018 |  | 413.0 |  |  | 36.58 |
Vested at September 30, 2018 |  | 113.2 |  |  | 31.05 |
Six Months Ended September 30, 2019 |  |  |  |
Vested and nonvested at March 31, 2019 |  | 413.0 |  |  | $ | 36.58 |
Granted |  | 220.3 |  |  | 31.02 |
Vested and issued |  | (66.8 | ) |  | 47.99 |
Forfeited |  | (27.8 | ) |  | 36.71 |
Vested and nonvested at September 30, 2019 |  | 538.7 |  |  | 32.88 |
Vested at September 30, 2019 |  | 138.3 |  |  | 31.71 |
Fair Value of Options Granted | The weighted average grant-date fair values of the options granted during the six months ended September 30, 2019 and 2018 were $10.83 and $10.22, respectively.
|  | Six Months Ended September 30,
|  | 2019 |  | 2018
Expected volatility |  | 30.9% - 31.3% |  |  | 29.6 | %
Expected dividends |  | $ | — |  |  | $ | — |
Expected term in years |  | 6.0 to 7.0 |  |  | 6.0 |
Risk-free rate |  | 2.3% to 2.4% |  |  | 2.9 | %
Stock Option Activity | A summary of option activity under the Plan is as follows:
Options |  | Shares (in thousands) |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value (in thousands)
Six Months Ended September 30, 2018 |  |  |  |  |  |  |  |
Outstanding at March 31, 2018 |  | 873.2 |  |  | $ | 41.79 |  |  |  |  |
Granted |  | 294.5 |  |  | 29.46 |  |  |  |  |
Exercised |  | (37.2 | ) |  | 27.60 |  |  |  |  |
Forfeited or expired |  | (125.4 | ) |  | 47.16 |  |  |  |  |
Outstanding at September 30, 2018 |  | 1,005.1 |  |  | 38.03 |  |  | 7.3 |  | $ | 6,271 |
Vested at September 30, 2018 |  | 555.2 |  |  | 37.08 |  |  | 6.4 |  | $ | 3,890 |
Six Months Ended September 30, 2019 |  |  |  |  |  |  |  |  |  |  |
Outstanding at March 31, 2019 |  | 944.6 |  |  | $ | 38.45 |  |  |  |  |
Granted |  | 302.7 |  |  | 30.53 |  |  |  |  |
Exercised |  | (18.4 | ) |  | 29.57 |  |  |  |  |
Forfeited or expired |  | (124.7 | ) |  | 43.08 |  |  |  |  |
Outstanding at September 30, 2019 |  | 1,104.2 |  |  | 35.90 |  |  | 7.2 |  | $ | 3,959 |
Vested at September 30, 2019 |  | 610.2 |  |  | 38.56 |  |  | 5.7 |  | $ | 2,772 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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