Short-Term Borrowings and Long-Term Debt (Tables)

12 Months Ended

Mar. 31, 2013

Short-Term Borrowings and Long-Term Debt [Abstract]

Schedule of accreted value of long-term debt

	March 31, 2013						March 31, 2012
	Current Accreted Value		Unamortized Discount		Maturity Amount		Accreted Value
5.5% senior notes	$	644,077	$	5,923	$	650,000	$	—
Five-year amortizing term loan	500,000		—		500,000		—
Other term loans	877		—		877		9,883
2.5% convertible senior notes	—		—		—		1,127,009
Subtotal	1,144,954		5,923		1,150,877		1,136,892
Less: current portion	50,438		—		50,438		1,278
Total	$	1,094,516	$	5,923	$	1,100,439	$	1,135,614

Schedule of aggregate maturities of long-term debt based on contractual terms

2014	$	50,438
2015	50,439
2016	50,000
2017	50,000
2018	300,000
Thereafter	650,000
Total	$	1,150,877