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Employee Benefit Plans - Fair values of plan assets by asset category (Details 6) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	$ 39,581	$ 31,501	$ 27,856
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	9,903	19,343
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	19,647	11,877
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	10,031	280	450
Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	39,591	31,500
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	138	581
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category		404
Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Cash and cash equivalents | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	138	985
Common-collective funds - Global large cap equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category		6,555
Common-collective funds - Global large cap equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	9,909	4,743
Common-collective funds - Global large cap equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Common-collective funds - Global large cap equities | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	9,909	11,298
Common-collective funds - Fixed income securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Common-collective funds - Fixed income securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,935	6,730
Common-collective funds - Fixed income securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Common-collective funds - Fixed income securities | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,935	6,730
Common-collective funds - Global asset allocations/risk parity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Common-collective funds - Global asset allocations/risk parity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	5,803
Common-collective funds - Global asset allocations/risk parity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Common-collective funds - Global asset allocations/risk parity | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	5,803
Mutual funds - Global Equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,925	10,887
Mutual funds - Global Equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Global Equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Global Equities | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,925	10,887
Mutual funds - Fixed income securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	1,913
Mutual funds - Fixed income securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Fixed income securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Fixed income securities | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	1,913
Mutual funds - Global asset allocations/risk parity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,927
Mutual funds - Global asset allocations/risk parity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Global asset allocations/risk parity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Global asset allocations/risk parity | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,927
Mutual funds - Real estate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category		1,320
Mutual funds - Real estate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Real estate | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Mutual funds - Real estate | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category		1,320
Other - Fixed income securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Other - Fixed income securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Other - Fixed income securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	2,007
Other - Fixed income securities | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	2,007
Other - Global asset allocations/risk parity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Other - Global asset allocations/risk parity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Other - Global asset allocations/risk parity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,954
Other - Global asset allocations/risk parity | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	3,954
Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category
Other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	4,070	280
Other | Total
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets by asset category	$ 4,070	$ 280

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930

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