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STOCK-BASED COMPENSATION | 9 Months Ended
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Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
STOCK-BASED COMPENSATION | NOTE 5 — STOCK-BASED COMPENSATION Pursuant to the Company’s 1998 Stock Incentive Plan, as amended, the Company issues stock options, restricted stock awards and restricted stock units (“RSUs”) to employees. The Company did not issue any stock options during the three and nine months ended September 30, 2015 and 2014. The restricted stock awards vest ratably over three years, cliff vest after three years, or vest at a rate of 50% each at the fourth and fifth year of continued employment from the date of the grant. The RSUs vest ratably over three years or cliff vest after three or five years of continued employment from the date of the grant. The restricted stock entitles the recipient to receive cash dividends equivalent to any dividends paid on the underlying common stock during the period the restricted stock is outstanding and, as such, are considered participating securities as discussed in Note 13 — Stockholders’ Equity and Earnings Per Share to the Consolidated Financial Statements. All restricted stock awards have vested as of September 30, 2015. While a portion of the restricted stock awards and RSUs are time-vesting awards, others vest subject to the attainment of specified performance goals. All restricted stock awards and RSUs are subject to forfeiture until vested. The Company recognized the following stock compensation expense and related net tax benefit associated with its various employee share-based compensation plans:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
($ in thousands) |  | 2015 |  | 2014 |  | 2015 |  | 2014
Compensation expense related to restricted stock awards |  | $ | 4,050 |  |  | $ | 3,637 |  |  | $ | 11,702 |  |  | $ | 10,382 |
Net tax benefit recognized in equity for stock compensation plans |  | $ | 31 |  |  | $ | 129 |  |  | $ | 3,227 |  |  | $ | 3,916 |
The following table presents a summary of the activity for the Company’s time-based and performance-based restricted stock awards as of September 30, 2015, including changes during the nine months ended September 30, 2015:
| September 30, 2015
| Restricted Stock and RSU Awards
| Time-Based |  | Performance-Based
| Shares |  | Weighted Average Price |  | Shares |  | Weighted Average Price
Outstanding at beginning of period | 751,020 |  |  | $ | 30.61 |  |  | 518,553 |  |  | $ | 29.64 |
Granted | 466,125 |  |  | 40.35 |  |  | 149,284 |  |  | 39.95 |
Vested | (218,363 | ) |  | 23.41 |  |  | (144,445 | ) |  | 22.05 |
Forfeited | (57,278 | ) |  | 36.41 |  |  | — |  |  | — |
Outstanding at end of period | 941,504 |  |  | $ | 36.75 |  |  | 523,392 |  |  | $ | 35.64 |
As of September 30, 2015, total unrecognized compensation cost related to time-based and performance-based restricted stock awards amounted to $25.6 million and $9.5 million, respectively. These costs are expected to be recognized over a weighted average period of 2.08 years and 1.88 years, respectively.

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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=6418621&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=51659978&loc=d3e25284-112666 Reference 3: 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 4: 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 5: 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 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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