12. Stock Repurchase Programs

Under resolutions adopted in July 2008 and September 2010, the Board of Directors authorized the repurchase, at management’s discretion, of up to an aggregate of $175.0 million of the Company’s common stock. The resolutions also authorized the use of option exercise proceeds for the repurchase of the Company’s common stock. During the six months ended March 31, 2012 and 2011, the Company repurchased 236,700 and 275,158 common shares at a cost of $8.8 million and $8.5 million, respectively.

On November 8, 2011, the Board of Directors replaced the existing share repurchase program with a new program. This program authorizes the Company to repurchase, at management’s discretion, up to $125.0 million of its common stock. The resolutions also authorize the use of option exercise proceeds for the repurchases of the Company’s common stock.

As a result of stock option exercises since November 8, 2011, the amount available for future repurchases increased to $129.8 million as of March 31, 2012.