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Earnings Per Share (Tables)
6 Months Ended
May 31, 2020
Earnings Per Share, Basic and Diluted [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
Basic and diluted earnings per share were calculated as follows (in thousands, except per share amounts):
 
 
Three Months Ended May 31,
 
Six Months Ended May 31,
 
 
2020
 
2019
 
2020
 
2019
Numerator:
 
 
 
 
 
 
 
 
Net income
 
$
51,989

 
$
47,461

 
$
111,737

 
$
77,472

Less: Distributed earnings allocated to nonvested restricted stock
 
(43
)
 
(14
)
 
(87
)
 
(27
)
Less: Undistributed earnings allocated to nonvested restricted stock
 
(231
)
 
(280
)
 
(511
)
 
(456
)
Numerator for basic earnings per share
 
51,715

 
47,167

 
111,139

 
76,989

Effect of dilutive securities:
 
 
 
 
 
 
 
 
Interest expense and amortization of debt issuance costs associated with convertible senior notes, net of taxes
 

 

 

 
541

Add: Undistributed earnings allocated to nonvested restricted stock
 
231

 
280

 
511

 
456

Less: Undistributed earnings reallocated to nonvested restricted stock
 
(223
)
 
(265
)
 
(492
)
 
(421
)
Numerator for diluted earnings per share
 
$
51,723

 
$
47,182

 
$
111,158

 
$
77,565

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted average shares outstanding — basic
 
90,493

 
87,641

 
90,169

 
87,310

Effect of dilutive securities:
 
 
 
 
 
 
 
 
Share-based payments
 
2,979

 
4,725

 
3,459

 
4,463

Convertible senior notes
 

 

 

 
2,862

Weighted average shares outstanding — diluted
 
93,472

 
92,366

 
93,628

 
94,635

Basic earnings per share
 
$
.57

 
$
.54

 
$
1.23

 
$
.88

Diluted earnings per share
 
$
.55

 
$
.51

 
$
1.19

 
$
.82