XML 94 R79.htm IDEA: XBRL DOCUMENT v3.20.4
Equity-Based Compensation Plans (Summary of Outstanding Performance Shares/Restricted Stock Units) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Performance stock awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Nonvested shares outstanding at January 1, Shares 196,007 142,238 200,631
Granted (in shares) 125,001 142,066 67,747
Vested (in shares) (63,456) (75,048) (121,058)
Forfeited (in shares) (4,286) (13,249) (5,082)
Nonvested shares outstanding at December 31, Shares 253,266 196,007 142,238
Total grant date fair value of awards vested during the year $ 4,783 $ 4,041 $ 3,634
Total fair value of awards vested during the year 3,968 3,561 6,397
Aggregate intrinsic value $ 12,668 $ 8,481 $ 4,500
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Nonvested shares outstanding at January 1, Weighted Average Grant Date Fair Value (in dollars per share) $ 50.15 $ 63.91 $ 39.19
Granted, Weighted Average Grant Date Fair Value (in dollars per share) 45.04 37.87 75.37
Vested, Weighted Average Grant Date Fair Value (in dollars per share) 75.37 53.85 30.02
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) 47.07 45.35 47.90
Nonvested shares outstanding at December 31, Weighted Average Grant Date Fair Value (in dollars per share) $ 41.36 $ 50.15 $ 63.91
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Nonvested shares outstanding at January 1, Shares 127,471 72,020 67,871
Granted (in shares) 68,263 104,488 49,193
Vested (in shares) (52,908) (43,102) (41,350)
Forfeited (in shares) (3,334) (5,935) (3,694)
Nonvested shares outstanding at December 31, Shares 139,492 127,471 72,020
Total grant date fair value of awards vested during the year $ 2,354 $ 1,961 $ 1,089
Total fair value of awards vested during the year 2,196 1,771 1,328
Aggregate intrinsic value $ 6,977 $ 5,516 $ 2,279
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Nonvested shares outstanding at January 1, Weighted Average Grant Date Fair Value (in dollars per share) $ 39.83 $ 47.66 $ 32.87
Granted, Weighted Average Grant Date Fair Value (in dollars per share) 38.77 36.80 49.96
Vested, Weighted Average Grant Date Fair Value (in dollars per share) 44.48 45.51 26.33
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) 40.20 40.26 45.36
Nonvested shares outstanding at December 31, Weighted Average Grant Date Fair Value (in dollars per share) $ 37.54 $ 39.83 $ 47.66