Number of Defined Benefit Pension Plans

No definition available.

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- Definition

Number of total defined benefit plans the company sponsors

+ References

No definition available.

+ Details

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- Definition

Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).

+ References

No definition available.

+ Details

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- Definition

The amount of decrease that is related to an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

+ 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 (a)(10)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Plan Curtailment

-URI http://asc.fasb.org/extlink&oid=6520938

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 15

-Paragraph 6

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

+ Details

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- Definition

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ 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 (d)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

+ Details

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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- Details

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Employee Benefit Plans (Details Textual) (USD $)	12 Months Ended
Employee Benefit Plans (Details Textual) (USD $)	Dec. 31, 2014 plan	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans	3arii_NumberOfTotalDefinedBenefitPlans
Number of defined benefit pension plans covering certain employees at designated repair facilities	2arii_NumberofDefinedBenefitPensionPlans
Expenses related to qualified defined contribution plans	$ 1,000,000	$ 1,000,000	$ 900,000
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Remaining prior service credits recognized	0	0	0
Net actuarial loss (gain) expected to be amortized from accumulated other comprehensive loss	(800,000)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Remaining prior service credits recognized	0	1,698,000	0
Net actuarial loss (gain) expected to be amortized from accumulated other comprehensive loss	100,000
Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Average target investment mix percentage	65.00%
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Average target investment mix percentage	35.00%
Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension and post retirement plans				$ 800,000