Related Party Transactions Narrative (Details) (USD $)	3 Months Ended		3 Months Ended		12 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended				3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 SPH Group Holding LLC [Member]	Mar. 31, 2013 Affiliated Entity [Member]	Dec. 31, 2012 Affiliated Entity [Member]	Jan. 31, 2013 Affiliated Entity [Member] Executive Services Fee [Member]	Mar. 31, 2013 Affiliated Entity [Member] Executive Services Fee [Member]	Dec. 31, 2012 Affiliated Entity [Member] Executive Services Fee [Member]	Mar. 31, 2013 Affiliated Entity [Member] Corporate Services Fee [Member]	Dec. 31, 2012 Affiliated Entity [Member] Corporate Services Fee [Member]	Mar. 31, 2013 Subordinated Notes [Member]	Mar. 26, 2013 Subordinated Notes [Member]	Dec. 31, 2012 Subordinated Notes [Member]	Mar. 31, 2013 Subordinated Notes [Member] SPH Group Holding LLC [Member]	Mar. 26, 2013 Subordinated Notes [Member] SPH Group Holding LLC [Member]
Related Party Transaction [Line Items]
Common stock - outstanding (in shares)	13,444,000	13,140,000	7,228,735
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest (as a percent)			53.80%
Debt instrument, interest rate, stated percentage (as a percent)											10.00%	10.00%
Repayments of Notes Payable														$ 25,000,000
Long-term Debt	146,897,000	137,750,000									0		9,440,000		21,600,000
Related party management services fees and other arrangements				8,890,000	10,980,000	2,000,000	1,740,000	1,740,000	7,150,000	9,240,000
Cost of Reimbursable Expense	$ 200,000