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Related Party Transactions - Amount Due from Related Parties (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Related Party Transaction [Line Items]
Due from related parties	$ 32,616	$ 24,432
Managed REITs
Related Party Transaction [Line Items]
Due from related parties	30,888	22,090
GOV
Related Party Transaction [Line Items]
Due from related parties	6,165	3,506
HPT
Related Party Transaction [Line Items]
Due from related parties	7,800	6,990
SIR
Related Party Transaction [Line Items]
Due from related parties	7,190	4,741
SNH
Related Party Transaction [Line Items]
Due from related parties	9,733	6,853
Managed Operators
Related Party Transaction [Line Items]
Due from related parties	1,007	2,198
Five Star
Related Party Transaction [Line Items]
Due from related parties	291	1,361
Sonesta
Related Party Transaction [Line Items]
Due from related parties	5	16
TA
Related Party Transaction [Line Items]
Due from related parties	711	821
Other
Related Party Transaction [Line Items]
Due from related parties	721	144
AIC
Related Party Transaction [Line Items]
Due from related parties	0	0
RIF
Related Party Transaction [Line Items]
Due from related parties	0	0
ABP Trust
Related Party Transaction [Line Items]
Due from related parties	$ 683	$ 122

X

- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.3)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

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+ References

No definition available.

+ Details

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