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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On April 26, 2013, the Company's board of directors declared a quarterly cash dividend of $0.185 per share of common stock. The dividend is payable on July 15, 2013 to shareholders of record as of July 1, 2013. Based on the Company's share count at March 31, 2013, total dividends to be paid are expected to be approximately $10.8 million.