Aggregate payments of multiemployer pension plan withdrawal liability according to actuarial calculation.

No definition available.

Name:	gk_Aggregatepaymentsofmultiemployerpensionplanwithdrawalliability
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Defined benefit plan Period of payment of withdrawal liability.

+ References

No definition available.

+ Details

Name:	gk_DefinedBenefitPlanPeriodOfPaymentOfWithdrawalLiability
Namespace Prefix:	gk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined benefit plan surplus percent on actuarial valuation

+ References

No definition available.

+ Details

Name:	gk_Definedbenefitplansurpluspercentonactuarialvaluation
Namespace Prefix:	gk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of employees' gross pay for which the employer contributes to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	gk_DefinedContributionPlanEmployerContribution
Namespace Prefix:	gk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan over the initial matching contribution.

+ References

No definition available.

+ Details

Name:	gk_DefinedContributionPlanEmployerOverMatchingContributionPercent
Namespace Prefix:	gk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan over the initial percentage.

+ References

No definition available.

+ Details

Name:	gk_DefinedContributionPlanMaximumAnnualContributionPerEmployeeOverFirstPercent
Namespace Prefix:	gk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate payments of multiemployer plan withdrawal liability according to demand notice provided by the plan.

+ References

No definition available.

+ Details

Name:	gk_Demandnoticeaggregatepaymentsofmultiemployerplanwithdrawalliability
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Per the demand notice received by the plan, the amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

No definition available.

+ Details

Name:	gk_Demandnoticemultiemployerplanwithdrawalliability
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Payments made to the Central States multiemployer pension fund during the period.

+ References

No definition available.

+ Details

Name:	gk_MultiemployerPensionPaymentsCentralStates
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

For defined benefit plans, the present value of benefits (whether vested or nonvested) attributed by the plan to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date.

+ References

No definition available.

+ Details

Name:	gk_NonPensionDefinedBenefitPlanBenefitObligation
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Expenses incurred related to the withdrawal from multi-employer pension plans, including incentives for union participants, and other associated expenses.

+ References

No definition available.

+ Details

Name:	gk_PensionWithdrawalAndAssociatedExpenses
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Value of life insurance contracts and investments.

+ References

No definition available.

+ Details

Name:	gk_ValueOfPurchasedLifeInsuranceContractsAndInvestments
Namespace Prefix:	gk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 35

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6394232&loc=d3e17558-110866

+ Details

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

- Details

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

- Definition

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503844

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

+ Details

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

- 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

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

- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(3)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

+ 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)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Projected Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6522206

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Postretirement Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503904

+ Details

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

- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ 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 (b)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930

+ Details

Name:	us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

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

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

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

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-Section 50

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450702-114947

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450691-114947

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-Section 50

-Paragraph 5

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450657-114947

+ Details

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

- Definition

Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

No definition available.

+ Details

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

Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended								12 Months Ended			12 Months Ended				12 Months Ended
	Mar. 29, 2014	Sep. 28, 2013	Jun. 29, 2013	Mar. 31, 2012	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013 G&K Services	Jun. 30, 2012 G&K Services	Jun. 28, 2014 Pension Plan	Jun. 29, 2013 Pension Plan	Jun. 30, 2012 Pension Plan	Jun. 28, 2014 SERP	Jun. 29, 2013 SERP	Jun. 30, 2012 SERP	Jun. 29, 2013 Executive Deferred Compensation Plan	Jun. 30, 2012 Executive Deferred Compensation Plan	Jul. 03, 2010 Executive Deferred Compensation Plan	Jan. 01, 2011 Quebec Plan	Jun. 28, 2014 401 (k) Plan	Jun. 29, 2013 401 (k) Plan	Jun. 30, 2012 401 (k) Plan	Jun. 28, 2014 United States	Jun. 29, 2013 United States	Jun. 30, 2012 United States	Jun. 28, 2014 CANADA	Jun. 29, 2013 CANADA	Jun. 30, 2012 CANADA
Employee Benefit Plans (Textual) [Abstract]
Value of life insurance contracts and investments			$ 10,796		$ 11,579	$ 10,796
Estimated amortization from accumulated other comprehensive income into net periodic benefit cost					2,406
Projected benefit obligation			76,758		91,251	76,758				91,251	76,758	88,029	17,610	15,548	17,576
Accumulated benefit obligation			76,758		91,251	76,758
Fair value of plan assets			64,599		75,985	64,599				75,985	64,599	53,792	0	0	0	32,667	26,775
Expected return on plan assets					6.50%	7.25%				7.25%	7.50%		0.00%	0.00%
Estimated contribution to pension plan and SERP in 2014										1,660			796
Multiemployer plans withdrawal liability recorded		23,500	21,700			21,700
Pension withdrawal and associated expenses	8,167	1,687	1,000	24,004	9,854	1,000	24,004
Period of the Payment of Withdrawal Liability		20 years				20 years
Fair Value Inputs, Discount Rate		5.25%
Surplus percent on actuarial valuation																			14.50%
Contributions of G&K Services																							509	779	1,282	805	823	787
Percentage of matching contribution received								5.00%	5.00%							50.00%				100.00%
Annual contribution per employee, percent																10.00%				3.00%
Additional percentage of matching contribution on participant's contributed pay																				50.00%
Annual contribution per employee over first percent																				2.00%
Contribution expense																1,167	1,169	1,191		5,310	5,236	4,844
Employer contribution to defined benefit plan						2.50%
Accumulated benefit obligation																32,667	26,775
Aggregate payments of multiemployer pension plan withdrawal liability		34,500	32,400			32,400
Demand notice aggregate payments of multiemployer plan withdrawal liability		56,000
Demand notice multiemployer plan withdrawal liability		35,100
Accretion Expense		113
Payments made to the Central States Fund					$ 2,334