Stockholders' Equity and Noncontrolling Interests (Tables)

12 Months Ended

Mar. 31, 2013

Change in Number of Shares of Common Stock Outstanding

The following demonstrates the change in the number of shares of common stock outstanding during fiscal years ended March 31, 2011, 2012 and 2013, respectively:  

Shares outstanding as of March 31, 2010	48,581,832
Shares issued as part of equity-based compensation plans, net of equity awards surrendered for option price and taxes	1,452,521
Shares outstanding as of March 31, 2011	50,034,353
Purchase of treasury stock	(2,646,885	)
Shares issued as part of equity-based compensation plans, net of equity awards surrendered for option price and taxes	412,661
Shares outstanding as of March 31, 2012	47,800,129
Purchase of treasury stock	(683,192	)
Shares issued as part of equity-based compensation plans, net of equity awards surrendered for option price and taxes	723,267
Shares outstanding as of March 31, 2013	47,840,204

Components Of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income are as follows:

	Beginning Balance			Before-Tax Amount			Tax Benefit (Expense)			Net-of-Tax Amount			Ending Balance
March 31, 2013
Pension funded status adjustment	$	(8,982	)	$	(5,382	)	$	1,195		$	(4,187	)	$	(13,169	)
Net unrealized gain (loss) on derivative instruments		1,175			(3,141	)		1,134			(2,007	)		(832	)
Foreign currency translation adjustment		81,900			(27,244	)		—			(27,244	)		54,656
Accumulated other comprehensive income	$	74,093		$	(35,767	)	$	2,329		$	(33,438	)	$	40,655
March 31, 2012
Pension funded status adjustment	$	(3,512	)	$	(7,311	)	$	1,841		$	(5,470	)	$	(8,982	)
Net unrealized gain (loss) on derivative instruments		4,436			(5,170	)		1,909			(3,261	)		1,175
Foreign currency translation adjustment		114,256			(32,356	)		—			(32,356	)		81,900
Accumulated other comprehensive income	$	115,180		$	(44,837	)	$	3,750		$	(41,087	)	$	74,093
March 31, 2011
Pension funded status adjustment	$	(5,479	)	$	2,761		$	(794	)	$	1,967		$	(3,512	)
Net unrealized gain (loss) on derivative instruments		(5,034	)		14,721			(5,251	)		9,470			4,436
Foreign currency translation adjustment		77,717			36,539			—			36,539			114,256
Accumulated other comprehensive income	$	67,204		$	54,021		$	(6,045	)	$	47,976		$	115,180

Summary of Redeemable Noncontrolling Interests

The following demonstrates the change in redeemable noncontrolling interests during the fiscal years ended March 31, 2012 and 2013, respectively:

Balance as of March 31, 2011	$	—
Redeemable noncontrolling interests recognized in acquisitions of Powertech Batteries and Energy Leader Batteries India Limited		9,916
Net losses attributable to redeemable noncontrolling interests		(170	)
Foreign currency translation adjustment		36
Balance as of March 31, 2012	$	9,782
Net losses attributable to redeemable noncontrolling interests		(1,429	)
Loan to equity conversion by redeemable noncontrolling interests		3,901
Foreign currency translation adjustment		(1,159	)
Balance as of March 31, 2013	$	11,095