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Stock Plans | 6 Months Ended
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Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Plans | 9. STOCK PLANS: During the six months ended June 30, 2018, the Company granted 0.1 million restricted stock units with a weighted-average grant date fair value of $71.34 per award. There were 0.4 million restricted stock units outstanding at June 30, 2018 and December 31, 2017. The compensation expense that has been charged against pre-tax income for all of the Company’s stock-based compensation plans was $2.0 million and $1.6 million for the three months ended June 30, 2018 and 2017, respectively, and $3.9 million and $3.2 million for the six months ended June 30, 2018 and 2017, 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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