Name:	agp_AllocatedPerformanceBasedCompensationExpense
Namespace Prefix:	agp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The maximum number of performance-based restricted stock units that participants can earn for performance-based target awards under the Company's long-term incentive plan.

No definition available.

Name:	agp_MaximumNumberOfRestrictedStockUnitsThatCanBeEarnedDuringPerformancePeriodForPerformanceBasedAwards
Namespace Prefix:	agp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The maximum percentage of granted target awards that participants can earn for performance-based awards under the Company's long-term incentive plan.

No definition available.

Name:	agp_MaximumTargetPercentageDuringPerformancePeriodForPerformanceBasedAwards
Namespace Prefix:	agp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The minimum number of performance-based restricted stock units that participants can earn for performance-based target awards under the Company's long-term incentive plan.

No definition available.

Name:	agp_MinimumNumberOfRestrictedStockUnitsThatCanBeEarnedDuringPerformancePeriodForPerformanceBasedAwards
Namespace Prefix:	agp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The minimum percentage of granted target awards that participants can earn for performance-based awards under the Company's long-term incentive plan.

No definition available.

Name:	agp_MinimumTargetPercentageDuringPerformancePeriodForPerformanceBasedAwards
Namespace Prefix:	agp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The target value of performance-based cash awards made during the period.

No definition available.

Name:	agp_PerformanceBasedCompensationArrangementByCashAwardTargetGrantsInPeriod
Namespace Prefix:	agp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The maximum amount of a performance-based target cash award that can be earned during the performance period

No definition available.

Name:	agp_PerformanceBasedCompensationArrangementCashAwardMaximumAmountThatCanBeEarnedDuringPerformancePeriod
Namespace Prefix:	agp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The minimum amount of a performance-based target cash award that can be earned during the performance period.

No definition available.

Name:	agp_PerformanceBasedCompensationArrangementCashAwardMinimumAmountThatCanBeEarnedDuringPerformancePeriod
Namespace Prefix:	agp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 6, 7

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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Name:	us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 6, 7

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

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

The minimum period that the individual is required to perform services in order to be fully vested under the deferred compensation arrangement.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65, A240

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Name:	us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements payable after one year (or the normal operating cycle, if longer). Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.

No definition available.

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

Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements payable within one year (or the normal operating cycle, if longer). Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20028-108363

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 25

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=6409836&loc=d3e19793-108362

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

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).