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STOCK-BASED COMPENSATION PLANS | 9 Months Ended
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May 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock-based compensation plans | NOTE 12. STOCK-BASED COMPENSATION PLANS The Company's stock-based compensation plans are described, and informational disclosures provided, in Note 16, Stock-Based Compensation Plans, to the audited consolidated financial statements in the Company's Annual Report on Form 10-K for the fiscal year ended August 31, 2016. In general, the restricted stock units granted during fiscal 2017 vest ratably over a period of three years. However, certain restricted stock units granted during fiscal 2017 cliff vest after a period of three years. Subject to the achievement of performance targets established by the Compensation Committee of CMC's Board of Directors, the performance stock units granted during fiscal 2017 will vest after a period of three years. During the nine months ended May 31, 2017 and 2016, the Company granted the following awards under its stock-based compensation plans:
|  | 2017 |  | 2016
(in thousands, except per share data) |  | Shares Granted |  | Weighted Average Grant Date Fair Value |  | Shares Granted |  | Weighted Average Grant Date Fair Value
Equity Method |  | 916 |  |  | $ | 16.04 |  |  | 1,613 |  |  | $ | 15.83 |
Liability Method |  | 915 |  |  | N/A |  |  | 465 |  |  | N/A |
During the first quarter of fiscal 2017, certain restricted stock units and performance stock units that were previously accounted for under the equity method were modified to allow optionality related to the net share settlement feature, which resulted in accounting for these awards under the liability method. The fair value of liability awards is remeasured each reporting period and is recognized ratably over the service period. During the three and nine months ended May 31, 2017, the Company recorded income of $2.0 million and expense of $2.7 million as a result of the modification and the impact of the change in stock value on liability-treated awards, compared to immaterial mark-to-market adjustments for the three and nine months ended May 31, 2016. As of May 31, 2017, the Company had 2.1 million equivalent shares accounted for under the liability method outstanding. The Company expects 2.0 million equivalent shares to vest. The following table summarizes total stock-based compensation expense, including fair value remeasurements, included in selling, general and administrative expenses on the Company's unaudited condensed consolidated statements of earnings:
|  | Three Months Ended May 31, |  | Nine Months Ended May 31,
(in thousands) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Stock-based compensation expense |  | $ | 3,560 |  |  | $ | 6,783 |  |  | $ | 19,716 |  |  | $ | 19,889 |

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68057994&loc=d3e25284-112666 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) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 + Details
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