Business Combinations, Sale and Deconsolidation of Subsidiaries, and Noncontrolling Interest (Details)	12 Months Ended		1 Months Ended		6 Months Ended		1 Months Ended	6 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 UBN USD ($)	Dec. 31, 2012 UBN EUR (€)	Jun. 30, 2012 Capital and Ownership Restructure USD ($)	Jun. 30, 2012 Capital and Ownership Restructure MCS	Dec. 31, 2012 Capital and Ownership Restructure UBN USD ($)	Jun. 30, 2012 Capital and Ownership Restructure UBN	Jun. 30, 2012 Capital and Ownership Restructure UBN MCS	Jun. 30, 2012 Capital and Ownership Restructure UBN Non-affiliated Investor Group
European Acquisition Partnership and European Servicing Entity - Capital and Ownership Restructure
Ownership interest prior to restructure (as a percent)						37.00%		70.00%	35.00%
Ownership interest after restructure (as a percent)							38.00%	38.00%	100.00%	62.00%
Decrease in cash upon deconsolidation	$ 2,855,000				$ 2,900,000
Non-cash decrease in other liabilities	7,941,000	815,000			500,000
Non-cash decrease in noncontrolling interest	9,334,000				8,500,000
Non-cash decrease to investments in unconsolidated subsidiaries					6,100,000
Agreed upon consideration for sale of ownership interest			26,300,000	20,000,000
Gain realized on transaction							1,000,000
Deferred gain on sale recognized							$ 600,000