Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014 Employee
Commitments and Contingencies [Abstract]
Environmental reserve	$ 1.5
Total number of employees	2,222
Number of salaried employees	479
Employees represented by unions	1,522
Percentage of employees represented by unions (in hundredths)	69.00%
Number of Employees covered under Erie, Pennsylvania facility in September, 2014	207
Number of Employees covered under Rockford, Illinois facility in November, 2014	311

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

No definition available.

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- Definition

Refers to number of Employees covered under Erie, Pennsylvania facility in September, 2014.

+ References

No definition available.

+ Details

Name:	acw_NumberOfEmployeesCoveredUnderEriePennsylvaniaFacilityInSeptember2014
Namespace Prefix:	acw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Refers to Number of Employees covered under Rockford, Illinois facility in November, 2014.

+ 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

Name:	acw_NumberOfSalariedEmployees
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

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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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