Notes Payable	9 Months Ended
Oct. 31, 2011
Notes Payable [Abstract]
Notes Payable	Note 4 — Notes Payable The Company has a financing agreement with JPMorgan Chase Bank, N.A., as Agent for a consortium of banks. The Company’s financing agreement, which extends through July 31, 2013, is a senior secured revolving credit facility providing for borrowings in the aggregate principal amount of up to $300 million. Borrowings under this credit facility bear interest, at the Company’s option, at the prime rate plus 0.50% or LIBOR plus 2.75%. Amounts available under this facility are subject to borrowing base formulas and over advances as specified in the financing agreement. The financing agreement requires the Company, among other things, to maintain a maximum senior leverage ratio and minimum fixed charge coverage ratio, as defined, and also limits payments for cash dividends and stock redemptions. As of October 31, 2011, the Company was in compliance with these covenants. The financing agreement is secured by all of the Company’s assets. Amounts payable under the Company’s revolving credit facility were $245.1 million and $166.7 million at October 31, 2011 and 2010, respectively.

Notes Payable

9 Months Ended

Oct. 31, 2011

Note 4 — Notes Payable

The Company has a financing agreement with JPMorgan Chase Bank, N.A., as Agent for a consortium of banks. The Company’s financing agreement, which extends through July 31, 2013, is a senior secured revolving credit facility providing for borrowings in the aggregate principal amount of up to $300 million. Borrowings under this credit facility bear interest, at the Company’s option, at the prime rate plus 0.50% or LIBOR plus 2.75%. Amounts available under this facility are subject to borrowing base formulas and over advances as specified in the financing agreement.

The financing agreement requires the Company, among other things, to maintain a maximum senior leverage ratio and minimum fixed charge coverage ratio, as defined, and also limits payments for cash dividends and stock redemptions. As of October 31, 2011, the Company was in compliance with these covenants. The financing agreement is secured by all of the Company’s assets. Amounts payable under the Company’s revolving credit facility were $245.1 million and $166.7 million at October 31, 2011 and 2010, respectively.