Long-term Debt, Lease Obligations and Interest Rate Caps (Details 1) (USD $) In Thousands, unless otherwise specified		12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Aug. 31, 2010 August 2011 Caps [Member]	Dec. 31, 2012 March 29, 2013 [Member]	Dec. 31, 2012 March 29, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 March 29, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 June 28, 2013 [Member]	Dec. 31, 2012 June 28, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 June 28, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 September 30, 2013 [Member]	Dec. 31, 2012 September 30, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 September 30, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 December 31, 2013 [Member]	Dec. 31, 2012 December 31, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 December 31, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 March 31, 2014 [Member]	Dec. 31, 2012 March 31, 2014 [Member] August 2011 Caps [Member]	Dec. 31, 2012 March 31, 2014 [Member] July 2011 Caps [Member]
Interest Rate Caps
Payment Date		Mar. 29, 2013			Jun. 28, 2013			Sep. 30, 2013			Dec. 31, 2013			Mar. 31, 2014
Cap Rate		2.00%			2.00%			2.00%			2.00%
Notional Amounts	$ 103,300	$ 84,925	$ 66,675	$ 18,250	$ 63,175	$ 0	$ 63,175	$ 62,475	$ 0	$ 62,475	$ 61,775	$ 0	$ 61,775	$ 61,075	$ 0	$ 61,075