Summary of Significant Accounting Policies (Earnings Per Share) (Details) (USD $)	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income (numerator) [Abstract]
Basic earnings per share, Net income available to common shareholders	$ 7,324,000		$ 4,788,000		$ 5,592,000		$ 7,406,000		$ 5,237,000		$ 3,561,000		$ 3,854,000		$ 3,972,000		$ 25,110,000	$ 16,624,000	$ 8,918,000
Diluted earnings per share, Net income available to common shareholders																	25,110,000	16,624,000	8,918,000
Shares (denominator) [Abstract]
Basic earnings per share, Net income available to common shareholders (in shares)																	37,425,197	33,227,755	31,914,955
Effect of dilutive securities, Common stock options and Warrants (in shares)																	695,887	60,523	5,777
Diluted earnings per share, Net income available to common shareholders (in shares)																	38,121,084	33,288,278	31,920,732
Per share amount [Abstract]
Basic earnings per share, Net income available to common shareholders (in dollars per share)	$ 0.20	[1]	$ 0.13	[1]	$ 0.15	[1]	$ 0.20	[1]	$ 0.15	[1]	$ 0.11	[1]	$ 0.12	[1]	$ 0.12	[1]	$ 0.67	$ 0.50	$ 0.28
Effect of dilutive securities, Common stock options and warrants (in dollars per share)																	$ (0.01)
Diluted earnings per share, Net income available to common shareholders (in dollars per share)	$ 0.19	[1]	$ 0.13	[1]	$ 0.15	[1]	$ 0.20	[1]	$ 0.15	[1]	$ 0.11	[1]	$ 0.12	[1]	$ 0.12	[1]	$ 0.66	$ 0.50	$ 0.28
Parent Company [Member]
Income (numerator) [Abstract]
Basic earnings per share, Net income available to common shareholders																	$ 25,110,000	$ 16,624,000	$ 8,918,000

[1] May not equal annual amounts due to rounding.