Subsequent Events (Details) (Revolving Credit Facility [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Jan. 21, 2014	Dec. 31, 2011
Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 100,000	$ 125,000	$ 100,000
Line of Credit, Terms, Provision to Increase the Aggregate Amount of Commitments Under Certain Conditions, Amount	25,000	50,000
Credit Facility Incremental Commitment			$ 25,000