Subsequent Events (Details) (USD $) Share data in Thousands, unless otherwise specified	0 Months Ended	3 Months Ended		0 Months Ended
	Mar. 26, 2014	Mar. 31, 2014	Mar. 31, 2013	Mar. 26, 2014 Common Stock [Member]	Apr. 02, 2014 Common Stock [Member] Subsequent Event [Member]	Apr. 22, 2014 Wells Fargo [Member] 2013 Secured Credit Facility [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Overallotment shares from initial public offering issued to underwriters (shares)				7,761	1,164
Net proceeds from sales of overallotment shares to underwriters	$ 72,600,000	$ 73,615,000	$ 0		$ 13,800,000
Repayment of outstanding debt						$ 4,300,000