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Stock-Based Compensation
6 Months Ended
Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Compensation Stock-Based Compensation

We currently have one stock-based compensation plan in effect under which we have issued options and restricted stock units to our officers, other key employees and outside directors.  During the first six months of 2019, 1,079,504 restricted stock units were granted to certain of our officers, other key employees and outside directors.  The fair value of these restricted stock units at the grant date was $30.8 million, which is being amortized ratably over the respective vesting period from the grant date.