New Accounting Pronouncements	3 Months Ended
Sep. 30, 2017
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	(11) New Accounting Pronouncements In October 2016, the Securities and Exchange Commission (SEC) issued Final Rule Release No. 33-10231, Investment Company Reporting Modernization (the Release). The Release calls for adoption of new rules and forms as well as amendments to its rules and forms to modernize the reporting and disclosure of information by registered investment companies. The SEC is adopting amendments to Regulation S-X, which will require standardized, enhanced disclosure about derivatives in investment company financial statements, as well as other amendments. The updates to Regulation S-X were effective August 1, 2017 and may result in additional disclosure relating to the presentation of derivatives and certain other financial instruments. These updates will have no impact on the Fund’s net assets or results of operations. In November 2016, FASB issued a new Accounting Standards Update No. 2016-18, “Statement of Cash Flows (Topic 230), Restricted Cash, a consensus of the FASB’s Emerging Issues Task Force” (ASU 2016-18”). ASU 2016-18 requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amendments in ASU 2016-18 do not provide a definition of restricted cash or restricted cash equivalents. ASU 2016-18 is effective for interim and annual reporting periods beginning after December 15, 2017. Management is currently evaluating the impact, if any, of applying this provision.

New Accounting Pronouncements

3 Months Ended

Sep. 30, 2017

Accounting Changes and Error Corrections [Abstract]

(11) New Accounting Pronouncements

In October 2016, the Securities and Exchange Commission (SEC) issued Final Rule Release No. 33-10231, Investment Company Reporting Modernization (the Release). The Release calls for adoption of new rules and forms as well as amendments to its rules and forms to modernize the reporting and disclosure of information by registered investment companies. The SEC is adopting amendments to Regulation S-X, which will require standardized, enhanced disclosure about derivatives in investment company financial statements, as well as other amendments. The updates to Regulation S-X were effective August 1, 2017 and may result in additional disclosure relating to the presentation of derivatives and certain other financial instruments. These updates will have no impact on the Fund’s net assets or results of operations.

In November 2016, FASB issued a new Accounting Standards Update No. 2016-18, “Statement of Cash Flows (Topic 230), Restricted Cash, a consensus of the FASB’s Emerging Issues Task Force” (ASU 2016-18”). ASU 2016-18 requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amendments in ASU 2016-18 do not provide a definition of restricted cash or restricted cash equivalents. ASU 2016-18 is effective for interim and annual reporting periods beginning after December 15, 2017. Management is currently evaluating the impact, if any, of applying this provision.