Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015 Employee
Commitments and Contingencies [Abstract]
Environmental reserve	$ 1.5
Total number of employees	2,196dei_EntityNumberOfEmployees
Number of salaried employees	495acw_NumberOfSalariedEmployees
Employees represented by unions	1,447acw_EmployeesRepresentedByUnions
Percentage of employees represented by unions (in hundredths)	66.00%
Number of employees covered under Rockford, Illinois facility	282

Represents the total number of employees in an organization represented by an union.

No definition available.

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Refers to the number of employees covered under Rockford, Illinois facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	acw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents number of salaried employees in an organization rather than those paid on an hourly rate basis.

+ References

No definition available.

+ Details

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Namespace Prefix:	acw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the percentage of employees in an organization that are represented by unions.

+ References

No definition available.

+ Details

Name:	acw_PercentageOfEmployeesRepresentedByUnions
Namespace Prefix:	acw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of persons employed by the Entity

+ References

No definition available.

+ Details

Name:	dei_EntityNumberOfEmployees
Namespace Prefix:	dei_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 25

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346

+ Details

Name:	us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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