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Derivative Instruments and Hedging Activities (Details Textual) - Interest Rate Swap [Member] - Contract | Jun. 30, 2017 | Apr. 01, 2010
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Derivative Instruments and Hedging Activities (Textual) [Abstract] |  |
Number of Interest rate swap agreements |  | 2
First half of mortgage [Member] |  |
Derivative Instruments and Hedging Activities (Textual) [Abstract] |  |
Strike rate | 5.91% |
Second half of mortgage [Member] |  |
Derivative Instruments and Hedging Activities (Textual) [Abstract] |  |
Strike rate | 6.07% |

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- Definition Derivative instruments and hedging activities. + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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