XML 66 R39.htm IDEA: XBRL DOCUMENT v3.20.4

SHARE-BASED AWARDS (Tables)

12 Months Ended

Dec. 31, 2020

SHARE-BASED AWARDS

Summary of Compensation expense and Other Measures Related to Share-Based awards

​

​	​	​	​	​	​	​	​	​	​	​
​	​	Years Ended December 31,
Share-based compensation expense, net of estimated forfeitures (in millions)		2020			2019			2018
Share-based compensation expense	​	$	18.8	​	$	11.3	​	$	12.1	​
Intrinsic value of options exercised	​	$	5.8	​	$	0.5	​	$	0.5	​
Tax benefit realized upon stock vesting	​	$	3.3	​	$	2.0	​	$	2.7	​
Fair value of stock vested	​	$	13.1	​	$	8.2	​	$	10.8	​

Stock Option Activity

Stock option activity for the year ended December 31, 2020 was as follows (in thousands, except weighted average exercise price and weighted average contractual life):

​	​	​	​	​	​	​	​	​	​	​	​
​				Weighted			Weighted			​
​	​	​	​	Average		​	Average	​	Aggregate
​	​	2007 Plan	​	Exercise		​	Contractual	​	Intrinsic
​	​	Shares	​	Price		​	Life	​	Value
Outstanding at December 31, 2019		173		$	22.30	​	​	​	​	​	​
Exercised		(172)	​	$	22.31	​	​	​	​	​	​
Outstanding at December 31, 2020		1		$	20.84		0.1	​	$	35	​
Exercisable at December 31, 2020		1		$	20.84		0.1	​	$	35	​

Non-Vested Restricted Stock Unit Activity

The following table summarizes non-vested restricted stock unit activity through December 31, 2020 (in thousands, except weighted average grant-date fair value amounts):

​	​	​	​	​	​	​	​	​	​	​
​		2007 Plan		2016 Plan		Total		Weighted
​	​	Restricted	​	Restricted	​	Restricted	​	Average Grant-		​
​	​	Stock Units	​	Stock Units	​	Stock Units	​	Date Fair Value
Outstanding at December 31, 2019		8		770		778	​	$	33.39	​
Granted	​	—	​	341	​	341	​	​	38.68	​
Settlement of Performance Shares (1)	​	—	​	38	​	38	​	​	36.55	​
Vested	​	(5)	​	(339)	​	(344)	​	​	34.86	​
Canceled	​	—	​	(21)	​	(21)	​	​	34.59	​
Outstanding at December 31, 2020		3		789		792	​	$	35.14	​

(1) Represents shares paid out above target.

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

+ 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 (h)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
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

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

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