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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule Of Share Based Compensation Shares Authorized Under Stock Plans Issued And Avaliability
(in thousands)
Common stock authorized11,000 
Stock-based awards, including restricted stock and stock options granted, net of expired or cancelled awards(3,569)
Common stock available for grant of stock-based awards as of December 31, 20217,431 
In addition, vested and unvested options to purchase 2,531 shares of common stock and 2,849 shares of unvested restricted stock awarded under the 2006 Plan were outstanding as of December 31, 2021.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] The following weighted average assumptions were used for stock options granted during 2021, 2020 and 2019:
Years Ended December 31,
202120202019
Volatility
40.3% to 49.6%
33.9% to 56.7%
32.0% to 39.6%
Risk free interest rate
0.1% to 1.0%
0.2% to 1.6%
1.6% to 2.5%
Expected life in years
2.0 to 4.0
3.0 to 5.0
1.0 to 5.0
Dividend yield1.4%1.2%1.6%
Weighted average fair value$13.30$10.15$5.38
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
For the years ended December 31, 2021, 2020 and 2019, total equity-based compensation were as follows:
Years Ended December 31,
(in thousands)202120202019
Restricted stock$18,144 $18,740 $19,143 
Stock options4,134 3,899 4,027 
Total$22,278 $22,639 $23,170 
Schedule of cash proceeds and intrinsic values for stock options exercised table text block
Stock Options
Activity relating to stock options granted under the Company’s plans during the year ended December 31, 2021 were as follows:
(in thousands except for per share price)Number of SharesWeighted Average Exercise PriceWeighted Average Remaining Contractual TermAggregate Intrinsic Value
Outstanding at January 1, 20212,674 $26.80 
Granted270 43.30 
Exercised(411)23.67 
Forfeited(2)31.56 
Outstanding at December 31, 20212,531 $29.06 2.7 years$44,054 
Vested and Exercisable at December 31, 20212,070 $28.20 2.6 years$37,829 
At December 31, 2021, $2.2 million of total unrecognized compensation cost related to non-vested stock option awards is expected to be recognized over a weighted-average period of 1.2 years.
Additional information pertaining to the Company's stock option plan were as follows:
Years Ended December 31,
(in thousands)202120202019
Cash received from the exercise of stock options$9,732 $1,609 $6,212 
Intrinsic value of stock options exercised$8,622 $993 $4,268 
Tax benefits realized on exercise of stock options$1,512 $234 $1,010