Debt - $110.0 million Credit Facility (Details) (USD $)	1 Months Ended		3 Months Ended
	May 31, 2010 Revolving credit facility	Mar. 30, 2014 Revolving credit facility	Mar. 30, 2014 Revolving credit facility Minimum	Mar. 30, 2014 Revolving credit facility Maximum	Mar. 30, 2014 LIBOR base rate Minimum	Mar. 30, 2014 LIBOR base rate Maximum	Mar. 30, 2014 Base rate other than LIBOR	Mar. 30, 2014 Base rate other than LIBOR Minimum	Mar. 30, 2014 Base rate other than LIBOR Maximum	Mar. 30, 2014 Letter of credit	Mar. 30, 2014 Swing line loan
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 110,000,000.0									$ 50,000,000.0	$ 10,000,000.0
Maturity period	5 years
Fixed charge coverage ratio			1.25
Description of variable rate basis							federal funds rate
Basis spread on variable rate					3.00%	3.75%		1.00%	1.75%
Base rate (the greater of prime rate or 0.5% over federal funds rate)							0.50%
Base rate (floor, 1.0% over one-month LIBOR)							1.00%
Commitment fee			0.50%	0.75%
Outstanding borrowings		0								9,200,000
Remaining borrowing capacity		$ 65,800,000