Employee Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2013

Employee Share-Based Compensation [Abstract]

Schedule of Black-Scholes assumptions (option pricing)

	Year ended	Year ended
	September 30, 2013	September 30, 2012
Expected Volatility	38.23%	39.17%
Risk-free rate	0.70%	0.91%
Expected term	5 years	5 years
Expected dividends	-	-

Schedule of compensation expense and other information

		Year ended		Year ended		Year ended
		September 30, 2013		September 30, 2012		September 30, 2011
		$'000s
Compensation Expense
Cost of sales	$	138	$	113	$	136
Selling, general and administrative (1)		12,537		8,383		7,297
Research and development		138		127		171
	$	12,813	$	8,623	$	7,604
(1) For the fiscal year 2013, this includes the compensation charge from the first quarter of $3,764 for the modification of share based awards in connection with the Transition Agreement for the former CEO and Chairman.
		Year ended		Year ended		Year ended
		September 30, 2013		September 30, 2012		September 30, 2011
		$'000s (except where noted)
Additional Information
Tax Information
Income tax benefit recognized for share-based compensation	$	(3,731)	$	(2,486)	$	(1,948)
Tax benefit realized from share-based compensation	$	(9,799)	$	(3,282)	$	(11,483)
Future Costs
Total compensation cost to be recognized in future periods related to outstanding non-vested share-based compensation awards	$	19,599	$	17,718	$	14,818
Weighted-average period expected for recognition of cost (in years)		2.6		2.6		2.6

Schedule of restricted and performance-based stock unit activity

	Year ended September 30, 2013
	Restricted Stock Units			Performance-based Stock Units
	Number of shares		Weighted average market price at grant	Number of shares		Weighted average market price at grant
Outstanding at beginning of period	585,187	$	38.47	13,000	$	36.78
Granted	180,036		63.19	-		0.00
Vested	(157,039)		37.37	-		0.00
Forfeited	(37,256)		41.49	-		0.00
Outstanding at end of period	570,928		46.37	13,000		36.78
	Year ended September 30, 2012
	Restricted Stock Units			Performance-based Stock Units
	Number of shares		Weighted average market price at grant	Number of shares		Weighted average market price at grant
Outstanding at beginning of period	462,265	$	36.99	13,000	$	36.78
Granted	216,400		41.15	-		0.00
Vested	(75,478)		36.26	-		0.00
Forfeited	(18,000)		41.98	-		0.00
Outstanding at end of period	585,187		38.47	13,000		36.78

Schedule of stock option activity

		Year ended
		September 30, 2013
				Weighted average
		Number of options		exercise price
Outstanding at beginning of period		2,157,113	$	17.63
Granted		154,500		63.45
Exercised		(512,221)		15.49
Forfeited		(21,290)		42.17
Outstanding at end of period		1,778,102		21.93
thereof vested and exercisable		1,469,883
		$'000s
Intrinsic value of options exercised	$	27,339
Total fair value of options vested	$	2,033
Aggregate intrinsic value of exercisable stock options	$	75,245
Weighted average remaining contractual life (in years)		3.3
		Year ended
		September 30, 2012
				Weighted average
		Number of options		exercise price
Outstanding at beginning of period		2,207,312	$	15.05
Granted		227,375		40.41
Exercised		(254,860)		15.44
Forfeited		(22,714)		19.12
Outstanding at end of period		2,157,113		17.63
		$'000s
Intrinsic value of options exercised	$	8,789
Total fair value of options vested	$	1,738
Aggregate intrinsic value of exercisable stock options	$	67,617
Weighted average remaining contractual life (in years)		4.2
		Year ended
		September 30, 2011
				Weighted average
		Number of options		exercise price
Outstanding at beginning of period		3,173,403	$	14.04
Exercised		(950,628)		11.72
Expired		(2,636)		19.86
Forfeited		(12,827)		11.83
Outstanding at end of period		2,207,312		15.05
		$'000s
Intrinsic value of options exercised	$	35,789
Total fair value of options vested	$	2,016
Aggregate intrinsic value of exercisable stock options	$	39,326
Weighted average remaining contractual life (in years)		4.9