XML 44 R33.htm IDEA: XBRL DOCUMENT v3.21.1

SHARE-BASED COMPENSATION AND BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2021

Restricted stock [Member]

Share-Based Compensation and Benefit Plans

Summary of activity of share-based compensation and benefit plans

​

​	​	​	​	​	​	​
​	​	For the Three Months Ended
​	​	March 31,
​		2021			2020
Compensation expense for shares issued under the ESPP	​	$	650	​	$	646
Income tax benefit from compensation expense related to shares issued under the ESPP	​	​	160	​	​	169
Compensation expense for restricted shares awarded	​	​	380	​	​	351
Income tax benefit from compensation expense related to restricted awards	​	$	94	​	$	92

Stock option

Share-Based Compensation and Benefit Plans

Summary of stock options

​

​	​	​	​	​	​
​	​	Shares	​	Weighted- Average
​	​	(in thousands)	​	Exercise Price
Outstanding at December 31, 2020		1,500	​	$	248.52
Granted		99	​		459.47
Exercised		(76)	​		129.13
Forfeited or expired		(4)	​		325.26
Outstanding at March 31, 2021		1,519	​	$	268.10
Exercisable at March 31, 2021		1,063	​	$	222.51

Black-Scholes option pricing model

​

​	​	​	​	​	​	​
​	​	March 31,
​		2021		​	2020
Risk free interest rate		0.85	%	​	1.02	%
Expected life		6.4	Years	​	6.4	Years
Expected volatility		29.9	%	​	25.5	%
Expected dividend yield		—	%	​	—	%

Summary of activity of share-based compensation and benefit plans

​

​	​	​	​	​	​	​
​	​	For the Three Months Ended
​	​	March 31,
​		2021			2020
Compensation expense for stock options awarded	​	$	5,262	​	$	4,878
Income tax benefit from compensation expense related to stock options	​		1,296	​		1,276
Weighted-average grant-date fair value of options awarded	​	$	144.30	​	$	107.26

X

- Definition

Tabular disclosure of share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: