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Share-Based Compensation Level 3 (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] The fair values of our stock options are calculated using the following weighted average assumptions, based on the methods described above:
Years Ended December 31,
Assumptions202220212020
Dividend yield1.5%1.8%1.7%
Expected volatility23.9%23.5%18.0%
Risk-free interest rate1.8%0.4%1.4%
Expected holding period (years)4.04.03.7
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
The following table summarizes certain information with respect to stock option and restricted share compensation included in our Consolidated Statement of Operations:
Years Ended December 31,
 202220212020
 (In thousands)
Total pretax employee share-based compensation expense included in net income$14,709 $14,168 $14,103 
Income tax benefit related to share-based compensation included in net income$3,877 $3,537 $3,417 
Share-based Payment Arrangement, Option, Activity [Table Text Block]
The following table sets forth stock option activity for the year ended December 31, 2022 (shares reported in whole numbers):
OptionsWeighted-Average
Exercise Price
Outstanding at December 31, 2021
5,922,692 $36.50 
Granted561,200 $59.76 
Exercised(1,010,366)$27.81 
Cancelled(12,421)$50.80 
Outstanding at December 31, 2022
5,461,105 $40.47 
Exercisable at December 31, 2022
4,164,190 $36.17 
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]
Set forth below is certain information related to stock options outstanding and exercisable at December 31, 2022 (shares reported in whole numbers):
 Options OutstandingOptions Exercisable
Range of Exercise Price
Number
Outstanding at
December 31, 2022
Weighted-Average Remaining Contractual Life
(in years)		Weighted-
Average Exercise Price
Number
Exercisable at
December 31, 2022
Weighted-
Average Exercise Price
$0.00 — 25.00773,962 1.1$22.28 773,962 $22.28 
$25.01 — 35.00966,250 2.1$29.25 966,250 $29.25 
$35.01 — 45.001,600,987 3.6$39.68 1,600,987 $39.68 
$45.01 — 55.001,560,676 5.5$50.32 822,991 $50.51 
$55.01 — 65.00559,230 7.1$59.76 — $— 
$0.00 — 65.00
5,461,105 3.9$40.47 4,164,190 $36.17 
Other Information Pertaining to Stock Option Activity [Table Text Block]
Other information pertaining to stock options was as follows (in thousands, except weighted-average grant date fair value):
Years Ended December 31,
202220212020
Weighted average grant-date fair value of stock options granted$11.02 $7.50 $6.44 
Total fair value of stock options vested$5,538 $5,708 $5,535 
Total intrinsic value of stock options exercised$42,700 $59,180 $41,995 
Cash received from the exercise of stock options
$27,814 $39,354 $26,671 
Recognized compensation expense
$5,738 $5,514 $5,668 
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
Restricted share award activity was as follows (share awards reported in whole numbers):
Restricted
Share Awards		Weighted-Average
Grant-Date
Fair Value
Nonvested restricted share awards at December 31, 2021
229,910 $48.76 
Granted101,543 $59.76 
Vested(116,561)$36.15 
Forfeited and other(2,777)$53.97 
Nonvested restricted share awards at December 31, 2022
212,115 $54.66 
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Restricted
Share Units		Weighted-Average
Grant-Date
Fair Value
Nonvested restricted share units at December 31, 2021
128,171 $47.87 
Granted58,012 $59.76 
Vested(61,877)$46.55 
Forfeited and other(5,370)$54.07 
Nonvested restricted share units at December 31, 2022
118,936 $54.31