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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Compensation Expense Recorded for All Stock Options, Stock Awards and SARs | Compensation expense recorded for all stock options, stock awards and SARs was as follows:
(In thousands) |  |  |  |  |  |  |  |  |
Three Months Ended June 30 |  |  | Six Months Ended June 30 |
2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
$ | 1,155 |  |  | $ | 3,166 |  |  | $ | 3,387 |  |  | $ | 4,551 |
Unrecognized Compensation Costs for Stock Options, Stock Awards and SARs | Unrecognized compensation costs for stock options, stock awards and SARs were as follows:
(In thousands) |  | June 30, 2018 |  |  | December 31, 2017 |
Stock options |  | $ | 2,175 |  |  | $ | 1,179 |
Stock awards |  |  | 5,105 |  |  |  | 3,737 |
SARs |  |  | 4,674 |  |  |  | 2,398 |
Share Based Payment Awards Granted in Period | The increases in unrecognized compensation costs for stock options, stock awards and SARs reflected the 2018 grants of:
|  | Shares |
Stock options |  |  | 76,409 |
Stock awards (at target) |  |  | 48,911 |
SARs |  |  | 169,245 |

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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 of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized. + 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 (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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