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Note 15 - Share Plans (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

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

		201 5				201 4				201 3
Weighted average grant date fair value		$	19.07			$	26.35			$	16.30
Assumptions:
Expected stock price volatility			41	%			45	%			47	%
Risk free interest rate			1.72	%			1.90	%			1.21	%
Expected annual dividend per share		$	-			$	-			$	-
Expected life of options (years)			6.25				6.25				6.25

Schedule of Share-based Compensation, Stock Options, 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, 2012			3,440,042			$	8.44				9.5			$	87,001
Granted			253,857				35.04
Exercised			(703,326	)			6.05
Expired			(1,625	)			20.94
Forfeited			(51,647	)			17.02
Outstanding as of December 31, 2013			2,937,301				5.74				9.5			$	148,369
Granted			187,189				57.21
Exercised			(549,282	)			3.44
Expired			(259	)			15.94
Forfeited			(32,810	)			12.68
Outstanding as of December 31, 2014			2,542,139				9.94				8.5			$	96,518
Granted			287,165				45.18
Exercised			(604,088	)			3.79
Expired			(6,409	)			50.11
Forfeited			(90,793	)			37.27
Outstanding as of December 31, 2015			2,128,014				15.15				7.7			$	40,271
Exercisable as of December 31, 2015			1,574,790				6.08				7.5			$	39,072

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

		Shares				Weighted-Average Grant-Date Fair Value
Non-vested as of December 31, 2012			665,071			$	17.75
Granted			112,494				37.82
Vested			(450,537	)			14.21
Forfeited			(22,622	)			25.36
Non-vested as of December 31, 2013			304,406				29.68
Granted			115,473				54.35
Vested			(105,123	)			28.31
Forfeited			(47,472	)			42.31
Non-vested as of December 31, 2014			267,284				38.72
Granted			193,117				41.31
Vested			(183,362	)			32.56
Forfeited			(33,999	)			47.77
Non-vested as of December 31, 2015			243,040				44.16

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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+ References

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+ References

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