Stockholders' Equity (Details) - $ / shares	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Stockholders' Equity [Abstract]
Dividend declared date	May 05, 2015	Mar. 17, 2015
Cash dividend declared per common share	$ 0.11	$ 0.11	$ 0.10	$ 0.22	$ 0.20
Dividends payable, payable date	May 29, 2015	Mar. 31, 2015
Dividends payable, record date	May 22, 2015	Mar. 24, 2015
Preferred stock, shares authorized	2,000,000			2,000,000		2,000,000
Preferred stock, shares outstanding	0			0		0
Anti-takeover provisions period				3 years