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Subsequent Events Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended
--- | --- | ---
Oct. 24, 2017 | Sep. 30, 2017 | [1] | Sep. 30, 2016 | [2]
Subsequent Event [Line Items] |  |  |
Dividends, Common Stock, Cash |  | $ 1,078 | $ 1,033
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Quarterly cash dividend declared, common stock | $ 0.14 |  |
[1] | Cash dividends of $0.14 per share were paid in the quarter ended September 30, 2017.
[2] | Cash dividends of $0.13 per share were paid in the quarter ended September 30, 2016.

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |