SCHEDULE III - REAL ESTATE PROPERTIES AND ACCUMULATED DEPRECIATION (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
SCHEDULE III - REAL ESTATE PROPERTIES AND ACCUMULATED DEPRECIATION
Total real estate properties	$ 663,036
Less: Accumulated depreciation and amortization	27,424
Net real estate properties	635,612	402,896	190,317
Reconciliation of real estate properties
Balance at beginning of year	402,896	190,317	59,277
Additions:
Acquisitions	205,220	185,453	116,759
Capital improvements	8,273	3,371	3,716
Capitalized development expenses and carrying costs	34,857	30,947	12,622
Total additions	248,350	219,771	133,097
Deductions:
Sales	80	117	37
Depreciation/amortization/paydowns	15,554	7,075	2,020
Total deductions	15,634	7,192	2,057
Balance at end of year	635,612	402,896	190,317
Aggregate cost of investments in real estate assets for Federal income tax purposes higher than book value	$ 2,625