Variable Interest Entities Nonconsolidated VIEs (Details) $ in Thousands	6 Months Ended
Sep. 30, 2016 USD ($) joint_venture	Mar. 31, 2016 USD ($)	Sep. 30, 2015 USD ($)
Variable Interest Entity [Line Items]
Investment in joint ventures	$ 55,655	$ 58,259	$ 54,814
Advances to joint ventures	$ 8,965	1,920	8,489
Corporate Joint Venture
Variable Interest Entity [Line Items]
Number of joint ventures \| joint_venture	7
Number of joint ventures, borrowings guaranteed by company \| joint_venture	2
Investment in joint ventures	$ 54,639	57,243	53,798
Advances to joint ventures	$ 8,965	1,920	5,623
Number of joint venture, maximum loss exposure \| joint_venture	2
Joint venture, maximum loss exposure	$ 94,054	$ 100,238	$ 94,602

Number Of Joint Ventures, Borrowings Guaranteed By Company

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Number of Joint Ventures

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No definition available.

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Number of Joint Ventures, Maximum Loss Exposure

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- Definition

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

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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.

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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).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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