Derivatives and Hedging Activities (Details 3) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Amount of Gain Recognized in Other Comprehensive Income on Derivative	$ 2,601
Fair Value and Cash Flow Hedging [Member]
Amount of Gain Recognized in Other Comprehensive Income on Derivative	2,601
Location of Gain Reclassified from Accumulated Other Comprehensive Income into Income	2,362
Fair Value and Cash Flow Hedging [Member] \| Interest Rate and Foreign Exchange Products [Member] \| Interest Expense [Member]
Amount of Gain Recognized in Other Comprehensive Income on Derivative	2,601
Location of Gain Reclassified from Accumulated Other Comprehensive Income into Income	431
Fair Value and Cash Flow Hedging [Member] \| Interest Rate and Foreign Exchange Products [Member] \| Foreign Currency Remeasurement [Member]
Location of Gain Reclassified from Accumulated Other Comprehensive Income into Income	$ 1,931

Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph c
-URI http://asc.fasb.org/extlink&oid=109980867&loc=d3e41638-113959

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 17A
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL34724391-108580

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e689-108580

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580

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