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Share-Based Compensation | 12 Months Ended
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Dec. 31, 2017
Share-Based Compensation [Abstract] |
Share-Based Compensation | 5. Share-Based Compensation The Company has various stock plans under which employees and directors may be granted non-vested stock which vests over a specific time period. The 2007 Stock Plan, which expired April 26, 2017, allowed for the granting of non-vested stock in the form of restricted stock, restricted stock units, non-qualified stock options or incentive stock options, and stock appreciate rights. In April 2017, the Company’s 2017 Stock Plan was approved, which authorized 1.8 million shares to be granted as non-vested stock in the form of restricted stock, restricted stock units, non-qualified stock options or incentive stock options, and stock appreciation rights. As of December 31, 2017, there were 1.8 million shares available to be granted as non-vested stock under the Company’s existing stock plans. Prior to December 2014, expense for shares of non-vested stock is recognized over the vesting period or during the period from the date of grant until the participant reaches age 65, whichever is shorter. The vesting period is five years for awards granted prior to December 2013 and three years beginning with awards granted in December 2013. During the period of restriction, the holder of non-vested stock has voting rights and is entitled to receive all dividends and other distributions paid with respect to the stock. The grants issued after December 2013, to elected officers, consisted of 100% performance stock unit awards which are based on a three-year performance and vesting period and a pro-rata vesting upon retirement. Three-year performance that exceeds the stated performance metrics would result in an award up to 150% of the original grant. The holders of the performance stock units are not entitled to vote or receive dividends and other distributions paid with respect to the stock, until the units have vested and the shares of stock are issued. The Company expenses awards for non-vested stock, including time-vesting stock and performance stock units, based on the fair value of the Company’s common stock at the date of the grant. The following table summarizes the non-vested stock and performance stock unit activity:
(In thousands except fair value) |  | Shares |  |  | Grant Date Weighted Average Fair Value |  |  | Aggregate Intrinsic Value |
Outstanding at December 31, 2014 |  |  | 604 |  |  | $ | 43.84 |  |  | $ | 36,454 |
Granted |  |  | 154 |  |  |  | 60.65 |  |  |  |  |
Vested |  |  | (74 | ) |  |  | 35.51 |  |  |  |  |
Cancelled |  |  | (142 | ) |  |  | 47.02 |  |  |  |  |
Outstanding at December 31, 2015 |  |  | 542 |  |  |  | 48.94 |  |  |  | 34,063 |
Granted |  |  | 119 |  |  |  | 69.92 |  |  |  |  |
Vested |  |  | (172 | ) |  |  | 43.42 |  |  |  |  |
Cancelled |  |  | (54 | ) |  |  | 52.41 |  |  |  |  |
Outstanding at December 31, 2016 |  |  | 435 |  |  |  | 56.44 |  |  |  | 34,184 |
Granted |  |  | 115 |  |  |  | 74.26 |  |  |  |  |
Vested |  |  | (114 | ) |  |  | 39.75 |  |  |  |  |
Cancelled |  |  | (24 | ) |  |  | 63.62 |  |  |  |  |
Outstanding at December 31, 2017 |  |  | 412 |  |  | $ | 65.64 |  |  | $ | 30,113 |
The total intrinsic values of shares vested during 2017, 2016, and 2015, was $8.8 million, $12.8 million, and $4.8 million, respectively. As of December 31, 2017, total remaining unearned compensation, net of expected forfeitures, related to non-vested stock and performance stock units was $13.5 million, which will be amortized over the weighted average remaining service period of 1.33 years. Total pre-tax share-based compensation recognized in the Consolidated Statements of Earnings was $5.9 million, $7.7 million, and $1.6 million in 2017, 2016, and 2015, respectively. Tax related benefits of $0.5 million, $2.8 million, and $0.5 million were also recognized in 2017, 2016, and 2015, respectively. Cash received from the exercise of stock options was $0.3 million, $0.7 million, and $0.4 million for 2017, 2016, and 2015, respectively, and is reflected in cash flows from financing activities in the Consolidated Statements of Cash Flows.

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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 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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