XML 39 R29.htm IDEA: XBRL DOCUMENT
v3.22.1

Stock-Based Compensation (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Schedule of Compensation Expense | Stock-based compensation cost by award type follows:
(in millions) |  |  |  | Three Months Ended March 31,
|  |  |  |  | 2022 |  | 2021
Stock option awards |  |  |  |  |  | $ | 3.1 |  |  | $ | 3.6 |
Restricted stock awards |  |  |  |  |  | 3.3 |  |  | 2.2 |
Performance share awards |  |  |  |  |  | 3.2 |  |  | 2.5 |
Stock appreciation rights |  |  |  |  |  | — |  |  | 3.1 |
Total stock-based compensation cost incurred |  |  |  |  |  | 9.6 |  |  | 11.4 |
Capitalized cost during the period |  |  |  |  |  | — |  |  | (3.4) |
Amortization of capitalized cost during the period |  |  |  |  |  | — |  |  | 5.5 |
Total stock-based compensation expense |  |  |  |  |  | $ | 9.6 |  |  | $ | 13.5 |

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: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration