Notes Payable (Tables)

12 Months Ended

Jan. 31, 2012

Notes payable

Notes payable consisted of the following:

As of January 31,	2012			2011
4.00% Debentures due 2031	$	213,224		$	—
6.25% Debentures due 2026, issued 2006		—			157,843
6.25% Debentures due 2026, issued fiscal 2011		—			31,705
Term loan due 2013		—			18,500
Other		1,349			1,300
Notes payable		214,573			209,348
Term loan due 2013, current portion		—			(2,000	)
Other, current portion		(1,349	)		—
Notes payable, long-term	$	213,224		$	207,348

Annual Maturities of Notes Payable

Annual maturities of our notes payable are scheduled as follows:

Fiscal years ending January 31,
2013	$	1,349
2014		—
2015		—
2016		—
2017		—
Thereafter		253,000
	$	254,349

Redemption Prices Expressed as a Percentage of Principal, Plus any Accrued and Unpaid Interest

We may redeem some or all of the 4.00% Debentures for cash on or after April 5, 2016 at the following redemption prices expressed as a percentage of principal, plus any accrued and unpaid interest:

Period	Redemption Price
Beginning on April 5, 2016 and ending on March 31, 2017		101.143	%
Beginning on April 1, 2017 and ending on March 31, 2018		100.571	%
On April 1, 2018 and thereafter		100.000	%

4.00% Debentures due 2031

Principal Amount, Unamortized Debt Discount and Premium, Net Carrying Amount

The principal amount, unamortized debt discount, net carrying amount of the liability component, and carrying amount of the equity component of the 4.00% Debentures are as follows:

As of	January 31, 2012
Principal amount	$	253,000
Unamortized debt discount		(39,776	)
Net carrying amount of the liability component	$	213,224
Equity component	$	43,930

Recognized Amounts in Interest Expense in the Condensed Consolidated Statement of Operations

We recognized the following amounts in interest expense in the consolidated statement of operations related to the 4.00% debentures:

	2012
Interest expense at the contractual interest rate	$	8,349
Amortization of debt discount	$	4,154

6.25% Debentures due 2026, issued 2006

Principal Amount, Unamortized Debt Discount and Premium, Net Carrying Amount

The principal amount, unamortized debt discount, net carrying amount of the liability component, and carrying amount of the equity component of the 6.25% Debentures, issued 2006, are as follows:

As of January 31,	2012		2011
Principal amount	$	—	$	165,000
Unamortized debt discount		—		(7,157	)
Net carrying amount of the liability component	$	—	$	157,843
Equity component	$	—	$	21,766

Recognized Amounts in Interest Expense in the Condensed Consolidated Statement of Operations

We recognized the following amounts in interest expense in the consolidated statements of operations related to the 6.25% Debentures, issued 2006:

Year ended January 31,	2012		2011		2010
Interest expense at the contractual interest rate	$	2,900	$	10,322	$	10,312
Amortization of debt discount	$	793	$	3,010	$	2,764

6.25% Debentures due 2026, issued fiscal 2011

Principal Amount, Unamortized Debt Discount and Premium, Net Carrying Amount

The principal amount, unamortized premium, and net carrying amount of the 6.25% Debentures, issued fiscal 2011, are as follows:

As of January 31,	2012		2011
Principal amount	$	—	$	31,509
Unamortized debt premium		—		196
Net carrying amount of the liability component	$	—	$	31,705