Sky Growth Merger (Narrative) (Details) (Sky Growth Merger [Member], USD $)		9 Months Ended	3 Months Ended		9 Months Ended
	Sep. 28, 2012	Sep. 30, 2014 Manager [Member]	Sep. 30, 2014 Manager [Member] Selling, General and Administrative Expenses [Member]	Sep. 30, 2013 Manager [Member] Selling, General and Administrative Expenses [Member]	Sep. 30, 2014 Manager [Member] Selling, General and Administrative Expenses [Member]	Sep. 30, 2013 Manager [Member] Selling, General and Administrative Expenses [Member]
Business Acquisition [Line Items]
Acquired ownership percentage (percent)	100.00%
Management services expenses, percentage of EBITDA (percent)		1.00%
Management services expenses, maximum annual expenses		$ 4,000,000
Management services expenses			$ 1,258,000	$ 1,023,000	$ 3,072,000	$ 2,417,000