Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Fixed interest rate related to the interest rate derivative.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(2)
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The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
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- Definition

The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
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Derivative Financial Instruments (Details) - USD ($)	3 Months Ended		6 Months Ended
Derivative Financial Instruments (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2017
Effect of derivative financial instrument on the consolidated statements of comprehensive (loss) income
Amount of gain recognized on derivative in Other Comprehensive Income	$ 1,132,000	$ 65,000	$ 1,590,000	$ 3,189,000
Gain or loss recognized related to hedge ineffectiveness	0	0	0	0
Gain from components excluded from assessment of cash flow hedge effectiveness	0	0	0	0
Estimated amount to be reclassified from Accumulated other comprehensive income (loss) as an increase to interest expense	294,000		294,000
Interest Expense
Effect of derivative financial instrument on the consolidated statements of comprehensive (loss) income
Amount of loss reclassified from Accumulated Other Comprehensive Income into Interest expense	0	$ 70,000	44,000	$ 214,000
Other Assets
Fair value of derivative financial instruments
Fair value of derivative financial instrument asset	3,079,000		3,079,000		$ 1,460,000
Accounts payable and accrued liabilities
Fair value of derivative financial instruments
Fair value of derivative financial instrument liability	$ 0		$ 0		$ 14,000
Hedging instrument \| Interest Rate Swap, Maturity Date January 1, 2021 [Member]
Interest Rate Derivatives
Fixed rate (as a percent)	3.86%		3.86%
Hedging instrument \| Interest Rate Swap, Maturity Date April 1, 2022
Interest Rate Derivatives
Notional Amount	$ 1,387,000		$ 1,387,000
Fixed rate (as a percent)	5.25%		5.25%
Hedging instrument \| Interest Rate Swap, Maturity Date May 6, 2023
Interest Rate Derivatives
Notional Amount	$ 26,400,000		$ 26,400,000
Fixed rate (as a percent)	3.61%		3.61%
Hedging instrument \| Interest Rate Swap, Maturity Date September 19, 2026
Interest Rate Derivatives
Notional Amount	$ 27,000,000		$ 27,000,000
Fixed rate (as a percent)	4.05%		4.05%
London Interbank Offered Rate (LIBOR) \| Hedging instrument \| Interest Rate Swap, Maturity Date January 1, 2021 [Member]
Interest Rate Derivatives
Notional Amount	$ 9,200,000		$ 9,200,000