Offering of Common Stock

12 Months Ended

Dec. 31, 2011

Offering of Common Stock [Abstract]

Offering of Common Stock

Offering of Common Stock

2009 Common Stock Offering

In August 2009, pursuant to a shelf registration statement on Form S-3, the Company completed a public offering of 4,830,000 shares of its common stock at $19.70 per share.  The Company received proceeds, net of underwriting commissions, of $91.3 million ($18.91 per share), and paid approximately $548,000 in related offering expenses.  The underwriters contributed $200,000 to offset a portion of the Company’s expenses.  A portion of the offering proceeds was used to repay the Company’s outstanding debt of approximately $29.9 million.

Proceeds received from the sale of securities	$	95,151
Less:
Underwriters’ commission	(3,806		)
	91,345
Offering related expenses	(548		)
Expense credit received from underwriters	200
Total proceeds, net of expenses	$	90,997
Use of proceeds:
Purchase of specialized equipment	7,000
Fund acquisitions in 2010	54,031
Repayment of outstanding debt	29,966
Balance retained in working capital, December 31, 2011	$	—