Variable Interest Entities Nonconsolidated VIEs (Details) - USD ($) $ in Thousands	Mar. 31, 2015	Mar. 31, 2014
Variable Interest Entity [Line Items]
Investment in joint ventures	$ 54,694	$ 51,406
Advances to joint ventures	41,816	44,869
Corporate Joint Venture [Member]
Variable Interest Entity [Line Items]
Investment in joint ventures	53,678	50,390
Advances to joint ventures	3,293	10
Joint venture, maximum loss exposure	$ 105,983	$ 142,904

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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-Number 210
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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
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-Subparagraph (SX 210.5-02.12)
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- Definition

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

+ References

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