Significant Accounting Policies Guarantees (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Guarantor Obligations [Line Items]
Amounts guaranteed (not to exceed)	$ 210,703	$ 300,557
Amounts outstanding under guarantees	$ 107,615	185,486
Number of years, before expiring guarantees	1 year
Financial Guarantee [Member]
Guarantor Obligations [Line Items]
Amounts outstanding under guarantees	$ 16,699	16,412
Estimate of Fair Value [Member]
Guarantor Obligations [Line Items]
Fair value of guarantees	$ 7,350	$ 8,650

Guarantor Obligations, Fair Value

No definition available.

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Namespace Prefix:	aoi_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Number of Years, Before Expiring Guarantees1

+ References

No definition available.

+ Details

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

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- Details

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- Details

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