XML 59 R42.htm IDEA: XBRL DOCUMENT v3.24.0.1

Note 17 - Share Plans (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Year Ended December 31,
		2023				2022				2021
Weighted average grant date fair value per share		$	57.73			$	129.38			$	129.47
Assumptions:
Expected stock price volatility			45	%			38	%			37	%
Risk free interest rate			3.64	%			1.54	%			0.45	%
Expected annual dividend per share		$	-			$	-			$	-
Expected life of options (years)			6.25				6.25				6.25

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Number of Options				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value ($ in thousands)
Outstanding as of December 31, 2020			1,528,690				49.08				6.3			$	272,553
Granted			70,392				335.70
Exercised			(229,921	)			45.95
Forfeited			(27,030	)			63.27
Outstanding as of December 31, 2021			1,342,131				64.29				5.5			$	386,069
Granted			109,266				282.20
Exercised			(137,305	)			36.91
Forfeited			(45,688	)			194.05
Outstanding as of December 31, 2022			1,268,404				81.35				4.9			$	47,764
Granted			208,392				119.31
Exercised			(159,316	)			42.46
Forfeited			(33,144	)			185.81
Outstanding as of December 31, 2023			1,284,336				89.64				5.0			$	75,587
Exercisable as of December 31, 2023			961,340				63.08				3.8			$	72,609

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

		Shares				Weighted-Average Grant-Date Fair Value
Non-vested as of December 31, 2020			456,194			$	68.42
Granted			126,339				223.09
Vested			(202,327	)			58.99
Forfeited			(14,241	)			138.64
Non-vested as of December 31, 2021			365,965				124.25
Granted			287,821			$	214.58
Vested			(234,284	)			83.52
Forfeited			(41,204	)			263.47
Non-vested as of December 31, 2022			378,298				203.04
Granted			425,099			$	117.62
Vested			(133,222	)			175.94
Forfeited			(44,789	)			213.80
Non-vested as of December 31, 2023			625,386				153.01

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ 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
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

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

X

- References

No definition available.

+ Details

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