Shareholders' Equity Shareholders' Equity (Details textual) (USD $)	0 Months Ended	3 Months Ended
	Mar. 07, 2014	Mar. 31, 2014	Feb. 06, 2013
Stockholders Equity Note [Line Items]
Stock Repurchased During Period, Value		$ 1,766,000
Common stock authorized to be repurchased, number of shares (in shares)			25,000,000
Common stock dividends, paid per share (in dollars per share)	$ 0.10
Common Stock and Additional Paid-in Capital
Stockholders Equity Note [Line Items]
Common stock repurchased, shares		57,000
Retained Earnings
Stockholders Equity Note [Line Items]
Common stock dividends, total cash paid		$ 14,100,000