Debt (Activity of Borrowings of TFI Subsidiaries) (Details) (USD $)						5 Months Ended		12 Months Ended									0 Months Ended	1 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 PFG [Member]	Dec. 31, 2012 PFG [Member]	Dec. 31, 2013 Operating Subsidiary	Dec. 31, 2012 Operating Subsidiary	Dec. 31, 2013 Siena Capital Finance LLC	Dec. 31, 2012 Siena Capital Finance LLC	Dec. 31, 2013 Subsidiaries	Dec. 31, 2012 Subsidiaries	Dec. 31, 2013 Notes Payable		Dec. 31, 2012 Notes Payable	Dec. 31, 2013 Mortgages	Dec. 31, 2012 Mortgages	Jul. 31, 2012 Notes payable, due July 15, 2022 Notes Payable PFG	Dec. 28, 2012 Notes payable, due July 15, 2022 Notes Payable Operating Subsidiary	Dec. 28, 2012 Common stock Notes payable, due July 15, 2022 Notes Payable Operating Subsidiary	Feb. 28, 2013 Liberty Bank [Member] Mortgages loan	Dec. 31, 2013 Liberty Bank [Member] Mortgages	Dec. 31, 2013 Real Estate Segment [Member]	Dec. 31, 2012 Real Estate Segment [Member]
Debt Instrument [Line Items]
Warehouse Agreement Borrowings				$ 133,715,000	$ 0
Variable interest rate (as a percent)						0.00%
Finite-Lived Intangible Asset, Acquired-in-Place Leases																				1,254,000	7,673,000
Mortgage Loans on Real Estate, Number of Loans																		2
Debt Instrument, Interest Rate, Stated Percentage															12.66%
Stock Repurchased During Period, Percentage																	8.80%
Balance and payment activity of borrowings
Balance at beginning of period		91,015,000	97,917,000	0	2,500,000			195,648,000				571,752,000			100,000,000	2,500,000
Balance at end of period		91,015,000	97,917,000	0	2,500,000			360,609,000	195,648,000			571,752,000			100,000,000	2,500,000
Interest expense incurred								17,410,000	8,096,000
Debt Instrument, Unamortized Discount				(943,000)	0							(206,171,000)	(200,000)
Long-term Debt	228,038,000			182,272,000	2,500,000					91,015,000	[1]		81,951,000	95,231,000
Line of Credit Facility, Amount Outstanding				49,500,000	0	5,371,000	0
Long-term Debt, Gross								82,151,000	94,859,000
Debt Instrument, Unamortized Premium														372,000
Aggregate principal amount												$ 777,923,000							$ 18,017,000

[1] Note payable relates to PFG’s acquisition of the administrative services rights from The Hartford and TFP payment for Series A preferred stock and common shares of PFG (See Note 12—Debt).