Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stockholders' Equity Note [Abstract]
Payments of Dividends	$ 4,351	$ 4,349
Shares repurchased under the program (in shares)	358,184
Shares withheld for tax withholding obligations for the vesting of restricted stock awards (in shares)	111,272
Authorized to repurchased additional shares under repurchase program (in shares)	991,385
Dividends declared per share of common stock (in dollars per share)	$ 0.17	$ 0.17