Equity Offering	9 Months Ended
Sep. 30, 2012
Equity Offering	13. EQUITY OFFERING On September 14, 2011, the Company entered into a continuous equity offering program (“Equity Program”) with Wells Fargo Securities, LLC (“Wells Fargo”), pursuant to which the Company was permitted to sell from time to time up to $125 million in aggregate offering price of shares of the Company’s common stock. During the nine months ended September 30, 2012, the Company issued 1,391,425 shares under this Equity Program at a weighted average issue price of $55.20 per share, generating net proceeds of $75.3 million after deducting $1.5 million of sales commissions payable to Wells Fargo. In addition to sales commissions paid to Wells Fargo, the Company incurred expenses of $43,000 in connection with the Equity Program during 2012. During 2011, the Company issued 1,166,875 shares of common stock under the Equity Program at a weighted average issue price of $40.59 per share, generating net proceeds of $46.4 million after deducting $0.9 million of sales commissions payable to Wells Fargo. In addition to sales commissions paid to Wells Fargo, the Company incurred expenses of $0.4 million in connection with the Equity Program during 2011. The Company used the proceeds from the Equity Program to reduce the outstanding balance under the Company’s revolving line of credit. As of September 30, 2012, the Company had no availability for issuance under the Equity Program.

13. EQUITY OFFERING

On September 14, 2011, the Company entered into a continuous equity offering program (“Equity Program”) with Wells Fargo Securities, LLC (“Wells Fargo”), pursuant to which the Company was permitted to sell from time to time up to $125 million in aggregate offering price of shares of the Company’s common stock.

During the nine months ended September 30, 2012, the Company issued 1,391,425 shares under this Equity Program at a weighted average issue price of $55.20 per share, generating net proceeds of $75.3 million after deducting $1.5 million of sales commissions payable to Wells Fargo. In addition to sales commissions paid to Wells Fargo, the Company incurred expenses of $43,000 in connection with the Equity Program during 2012. During 2011, the Company issued 1,166,875 shares of common stock under the Equity Program at a weighted average issue price of $40.59 per share, generating net proceeds of $46.4 million after deducting $0.9 million of sales commissions payable to Wells Fargo. In addition to sales commissions paid to Wells Fargo, the Company incurred expenses of $0.4 million in connection with the Equity Program during 2011. The Company used the proceeds from the Equity Program to reduce the outstanding balance under the Company’s revolving line of credit. As of September 30, 2012, the Company had no availability for issuance under the Equity Program.