Stockholders' Equity - Narrative (Details) (USD $)	0 Months Ended		1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 27, 2014	Mar. 28, 2014	Feb. 28, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Equity [Abstract]
Dividends declared per common share	$ 0.75	$ 0.75		$ 0.75	$ 0.75	$ 1.5	$ 1.5
Payments of Dividends	$ 14,300,000	$ 14,300,000				$ 28,518,000	$ 28,885,000
Stock Repurchase Program, Authorized Amount			100,000,000
Stock Repurchased During Period, Shares						367,256
Stock Repurchased During Period, Value						30,000,000
Cumulative Amount of Shares Repurchased				779,278		779,278
Cumulative Payments for Repurchase of Common Stock				59,700,000		59,700,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount						40,300,000
Treasury Stock Reissued (shares)						315,768
Treasury Stock Reissued						$ 11,400,000