Subsequent Events (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended	1 Months Ended
Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011	Jul. 31, 2012 Dividend declared, April 2012	Apr. 30, 2012 Dividend declared, April 2012
Subsequent Events
Cash dividends declared per common share (in dollars per share)	$ 0.125	$ 0.125	$ 0.375		$ 0.125
Cash dividend declared	$ 6,038	$ 6,263	$ 18,073		$ 6,000
Cash dividends paid per common share (in dollars per share)				$ 0.125

Aggregate dividends paid during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: 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=6959260&loc=d3e187085-122770

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

Equity impact of common stock cash dividends declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.

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