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Stock-Based Compensation (Tables)

9 Months Ended

Dec. 31, 2012

Stock-Based Compensation

Schedule of amounts recognized in the condensed financial statements related to stock-based compensation

Amounts recognized in the condensed financial statements related to stock-based compensation are as follows (in thousands, except per share data):

		Three months ended December 31,						Nine months ended December 31,
		2012			2011			2012			2011
Total cost of stock-based compensation charged against income before income taxes		$	459		$	157		$	897		$	349
Amount of income tax benefit recognized in earnings		163			57			314			127
Amount charged against net income		$	296		$	100		$	583		$	222
Impact on net income per common share:
Basic		$	0.09		$	0.03		$	0.17		$	0.07
Diluted		0.08			0.03			0.17			0.06

Schedule of Black-Scholes assumptions used for option grants

		Nine months ended December 31,
		2012		2011
Volatility		29.3%		33.5%
Risk-free interest rate		0.6-1.0%		0.9-2.2%
Expected option life (years)		5-10		5-10
Dividend yield		1.4%		1.8%

Summary of stock option activity

		Number of Shares		Weighted- average Exercise Price per Share			Weighted- average Remaining Contractual Term		Aggregate Intrinsic Value (000s)
Outstanding at March 31, 2012		433,785		$	22.77		3.9
Options granted		116,080		50.01			6.0
Options forfeited		(36,110	)	33.04
Options expired		(40	)	18.98
Options exercised		(63,375	)	20.17
Outstanding at December 31, 2012		450,340		29.33					$	9,392
Exercisable at December 31, 2012		180,925		21.30			3.0		5,212

Summary of the status of unvested option shares

		Number of Shares		Weighted- average Grant-Date Fair Value
Unvested at March 31, 2012		284,875		$	7.23
Options granted		116,080		12.45
Options forfeited		(36,110	)	8.97
Options vested		(95,430	)	6.80
Unvested at December 31, 2012		269,415		9.40

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for unvested share options (or share units) that were outstanding at the beginning and end of the year, and the number of unvested share options or share units that were granted, vested, forfeited, and expired during the year.

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- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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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.

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