Related party transactions (Details) (USD $) In Thousands	Pillar	ARL	Total.
Related party receivable, at Dec. 31, 2013		$ 52,380	$ 52,380
Cash transfers	47,701		47,701
Advisory fees	(7,373)		(7,373)
Net income fee	(3,669)		(3,669)
Fees and commissions	(4,398)		(4,398)
Cost reimbursements	(2,622)		(2,622)
Interest income.		2,795	2,795
Notes receivable purchased	(26,290)		(26,290)
Expenses paid by advisor	(7,341)		(7,341)
Financing (mortgage payments)	(3,321)		(3,321)
Sales/Purchases transactions	7,729		7,729
Series K preferred stock acquisition		270	270
Tax sharing expense			0
Purchase of obligations	(416)	2,959	2,543
Related party receivable, at Dec. 31, 2014		$ 58,404	$ 58,404