XML 59 R41.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Information on stock options issued | The following table contains information about our stock options:
| Number of Option Shares |  | Weighted-Average Exercise Price |  | Weighted-Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in millions)
Outstanding as of January 1, 2021 | 3,599,189 |  |  | $ | 19.79 |  |  |  |  |
Granted and rolled over | 587,399 |  |  | $ | 41.96 |  |  |  |  |
Exercised | (627,523) |  |  | $ | 17.28 |  |  |  |  |
Forfeited | (201,691) |  |  | $ | 27.24 |  |  |  |  |
Outstanding as of December 31, 2021 | 3,357,374 |  |  | $ | 23.69 |  |  | 6.28 |  | $ | 100.0 |
Exercisable as of December 31, 2021 | 1,551,263 |  |  | $ | 18.56 |  |  | 4.62 |  | $ | 50.8 |
Weighted-average assumptions used in Black-Scholes option pricing model | The following are the weighted-average assumptions used in the Black-Scholes option-pricing model for the years ended December 31, 2021, 2020 and 2019:
| For the year ended December 31,
| 2021 |  | 2020 |  | 2019
Risk-free interest rate | 0.46 | % |  | 1.55 | % |  | 2.00 | %
Expected volatility | 75.33 | % |  | 33.78 | % |  | 32.90 | %
Dividend yield | — |  |  | — |  |  | — |
Weighted-average expected life (in years) | 5.2 |  | 5.0 |  | 5.3
Information on restricted stock awards | The following table contains information on our RSAs and RSUs:
| With Performance Conditions |  | Without Performance Conditions
| Number of Shares |  | Weighted- Average Grant Date Fair Value |  | Number of Shares |  | Weighted- Average Grant Date Fair Value
Nonvested as of January 1, 2021 | 229,632 |  |  | $ | 28.84 |  |  | 390,815 |  |  | $ | 25.67 |
Granted and rolled over | 1,106,613 |  |  | $ | 62.81 |  |  | 871,763 |  |  | $ | 78.15 |
Vested | (136,859) |  |  | $ | 31.38 |  |  | (142,350) |  |  | $ | 24.83 |
Forfeited | (31,022) |  |  | $ | 77.12 |  |  | (17,215) |  |  | $ | 47.81 |
Nonvested as of December 31, 2021 | 1,168,364 |  |  | $ | 58.89 |  |  | 1,103,013 |  |  | $ | 66.90 |

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 the changes in outstanding nonvested restricted stock shares. + 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 (c) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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: | dtr-types: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: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration