Share-Based Compensation |
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Jun. 30, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Share-Based Compensation |
7. Share-Based Compensation The Company has share-based compensation plans, which are more fully described in Note 9, Share-Based Compensation, to the Consolidated Financial Statements included in the 2017 10-K. During the six months ended June 30, 2018, the Company granted restricted stock units subject to service conditions and service and performance conditions. Share-based compensation expense amounted to $10.4 million and $11.4 million for the three months ended June 30, 2018 and 2017, respectively, and $20.2 million and $22.7 million for the six months ended June 30, 2018 and 2017, respectively. As of June 30, 2018, the total unrecognized compensation cost related to all non-vested stock awards was $73.9 million and the related weighted-average period over which it is expected to be recognized is approximately 1.4 years. The following tables summarize the activity under all share-based compensation plans for the six months ended June 30, 2018:
There were no SARs granted during the three and six months ended June 30, 2018. The weighted-average grant date fair value of SARs granted during the three and six months ended June 30, 2017 was $17.38 and $14.17, respectively. The total intrinsic value of SARs exercised during the three months ended June 30, 2018 and 2017 was $64.8 million and $80.2 million, respectively. The total intrinsic value of SARs exercised during the six months ended June 30, 2018 and 2017 was $187.0 million and $97.0 million, respectively. The following table summarizes the activities for stock units for the six months ended June 30, 2018:
The total vesting date fair value of stock units which vested during the three months ended June 30, 2018 and 2017 was $2.1 million and $1.4 million, respectively. The total vesting date fair value of stock units which vested during the six months ended June 30, 2018 and 2017 was $2.1 million and $1.4 million, respectively. |