Share Based Awards (Tables)

12 Months Ended

Mar. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of stock option activity

	Number of Shares		Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Life (years)	Aggregate Intrinsic Value (in thousands)
Outstanding, March 31, 2010	1,743,926		$	21.58
Granted	110,000		29.15
Exercised	(307,428	)	18.60			$	7,093
Forfeited/Canceled	(148,942	)	27.50
Outstanding, March 31, 2011	1,397,556		$	22.20
Granted	459,400		43.04
Exercised	(697,157	)	18.34			$	17,698
Forfeited/Canceled	(171,462	)	36.66
Outstanding, March 31, 2012	988,337		$	32.09	5.4
Granted	556,500		27.78		7.2
Exercised	(56,366	)	16.81		0.3	$	82
Forfeited/Canceled	(329,288	)	31.42		5.8
Outstanding, March 31, 2013	1,159,183		$	30.54	5.5	$	31
Vested and expected to vest, March 31, 2013	1,096,365		$	30.98	5.5	$	31
Exercisable, March 31, 2013	354,843		$	27.72	3.3	$	29

Schedule of share based compensation valuation assumption

	Year Ended	Year Ended	Year Ended
	March 31, 2013	March 31, 2012	March 31, 2011
Expected life	5.0 years	4.3 years	4.2 years
Expected volatility	41.3% - 45.1%	41.2%	42.6% - 44.7%
Expected dividends	2.4% - 4.0%	1.6%	1.9% - 2.2%
Risk-free rate	0.7% - 0.8%	1.8%	1.5% - 2.1%

Summary of stock options granted

Option Grant Date	Number of Shares	Exercise Price		Vesting Terms (1)	Expires
January 23, 2013	40,000	$	19.00	Five years	January 23, 2021
November 5, 2012	5,000	$	17.68	Five years	November 5, 2020
September 25, 2012	20,000	$	18.42	Five years	September 25, 2020
May 24, 2012	346,000	$	29.17	Five years	May 24, 2020
May 24, 2012	30,000	$	29.17	Four years	May 24, 2020
May 23, 2012	115,500	$	29.45	Five years	May 23, 2020
Fiscal year 2013 option grants	556,500
May 31, 2011	459,400	$	43.04	Five years	May 31, 2019
Fiscal year 2012 option grants	459,400
November 29, 2010	20,000	$	32.16	Five years	November 29, 2018
August 3, 2010	10,000	$	27.62	Five years	August 3, 2018
June 4, 2010	50,000	$	28.15	Five years	June 4, 2018
June 2, 2010	30,000	$	29.31	Five years	June 2, 2018
Fiscal year 2011 option grants	110,000

Schedule of performance based awards under incentive plan

	Year Ended March 31, 2013	Year Ended March 31, 2012	Year Ended March 31, 2011
Expected life	5.0 years	4.3 years	4.3 years
Expected volatility	41.7% - 45.0%	41.2% - 42.2%	41.6%
Expected dividends	2.5% - 4.0%	1.4% - 1.9%	1.5%
Risk-free rate	0.6% - 0.7%	0.8 % - 1.8%	2.2%

Schedule of employee stock options and performance based awards by nonvested stock options

	Non-Vested Number of Shares		Weighted- Average Grant-Date Fair Value per Share
Outstanding, March 31, 2010	1,221,672		$	7.63
Granted	110,000		9.24
Vested	(379,694	)	6.43
Forfeited/Canceled	(148,942	)	9.41
Outstanding, March 31, 2011	803,036		$	8.08
Granted	459,400		13.32
Vested	(312,655	)	7.22
Forfeited/Canceled	(171,462	)	11.55
Outstanding, March 31, 2012	778,319		$	10.76
Granted	556,500		8.22
Vested	(201,191	)	8.43
Forfeited/Canceled	(329,288	)	9.92
Outstanding, March 31, 2013	804,340		$	9.89

Restricted stock units award activity

	Number of Shares		Weighted- Average Grant-Date Fair Value per Share
Outstanding, March 31, 2010	16,000		$	26.93
Granted	18,292		27.31
Vested	(11,396	)	27.22
Outstanding, March 31, 2011	22,896		$	27.09
Granted	22,668		39.75
Vested	(15,563	)	27.51
Outstanding, March 31, 2012	30,001		$	36.32
Granted	18,939		19.32
Vested	(18,555	)	32.14
Outstanding, March 31, 2013	30,385		$	27.09