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STOCK-BASED COMPENSATION (Tables) | 12 Months Ended
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Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Restricted stock and restricted stock unit activity | 2017 activity of restricted stock and restricted stock units subject to performance and/or market conditions is presented below:
| Shares/ Units |  | Weighted Average Grant Date Fair Value Per Share
Nonvested at September 30, 2016 | 510,583 |  |  | $ | 40.37 |
Granted (maximum shares that can be earned) | 196,400 |  |  | $ | 45.01 |
Vested | (78,825 | ) |  | $ | 42.37 |
Forfeited | (64,128 | ) |  | $ | 33.03 |
Nonvested at September 30, 2017 (at maximum) | 564,030 |  |  | $ | 42.51 |
Nonvested at September 30, 2017 (at target) | 282,015 |  |  | $ | 56.32 |
Time-vested restricted stock and stock unit activity for fiscal 2017 is presented below:
| Shares/ Units |  | Weighted Average Grant Date Fair Value Per Share
Nonvested at September 30, 2016 | 132,779 |  |  | $ | 49.83 |
Granted | 44,090 |  |  | $ | 63.15 |
Vested | (58,200 | ) |  | $ | 47.67 |
Forfeited | (7,729 | ) |  | $ | 55.58 |
Nonvested at September 30, 2017 | 110,940 |  |  | $ | 55.85 |
Stock option awards activity | No stock options were granted during fiscal years 2017, 2016, and 2015. There was no stock option activity in fiscal 2017, as all outstanding stock options either vested or forfeited in fiscal 2016.
Significant assumptions used in the Monte Carlo simulations | The significant assumptions used in the Monte Carlo simulations are as follows:
| 2017 |  | 2016 |  | 2015
Risk-free interest rate | 1.39% |  | 1.14% |  | 0.83%
Expected dividend yield of stock | — |  | — |  | —
Expected volatility of stock | 16.3% |  | 15.0% |  | 14.0%
Vesting period | 2.8 years |  | 2.8 years |  | 2.8 years
Compensation cost recognized for share-based compensation arrangements | The amounts of compensation cost recognized for share-based compensation arrangements are presented below:
| 2017 |  | 2016 |  | 2015
Total compensation cost | $ | 7.4 |  |  | $ | 6.7 |  |  | $ | 6.7 |
Compensation cost capitalized | (3.3 | ) |  | (2.2 | ) |  | (1.8 | )
Compensation cost recognized in net income | $ | 4.1 |  |  | $ | 4.5 |  |  | $ | 4.9 |
Income tax benefit recognized in net income | (1.5 | ) |  | (1.7 | ) |  | (1.9 | )
Compensation cost recognized in net income, net of income tax | $ | 2.6 |  |  | $ | 2.8 |  |  | $ | 3.0 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + 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 (h)(1) -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 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + 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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- 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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