Cash Dividend Paid to Parent - Operating activity

No definition available.

Name:	fun_CashDividendPaidtoParent
Namespace Prefix:	fun_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Intercompany Activity, Net, Financing Activities

+ References

No definition available.

+ Details

Name:	fun_IntercompanyActivityNetFinancingActivities
Namespace Prefix:	fun_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Intercompany payable - Movements in intercompany payable balances that are not settled on the same terms as third party vendors

+ References

No definition available.

+ Details

Name:	fun_Intercompanypayable
Namespace Prefix:	fun_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Intercompany Receivable - amounts (paid) or received for intercompany receivable balances that are not settled in the same fashion as third party vendors

+ References

No definition available.

+ Details

Name:	fun_IntercompanyReceivable
Namespace Prefix:	fun_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Intercompany Receivable Investing activities

+ References

No definition available.

+ Details

Name:	fun_IntercompanyReceivableInvesting
Namespace Prefix:	fun_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Investment in Joint Venture Operating Activities

+ References

No definition available.

+ Details

Name:	fun_InvestmentinJointVentureOperatingActivities
Namespace Prefix:	fun_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Subsidiary Guarantor Ownership Percentage

+ References

No definition available.

+ Details

Name:	fun_SubsidiaryGuarantorOwnershipPercentage
Namespace Prefix:	fun_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Subsidiary Ownership Percentage Guaranteering Notes

+ References

No definition available.

+ Details

Name:	fun_SubsidiaryOwnershipPercentageGuaranteeringNotes
Namespace Prefix:	fun_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 235

-Section S99

-Paragraph 2

-Subparagraph (SX 210.9-06)

-URI http://asc.fasb.org/extlink&oid=6882215&loc=d3e537971-122884

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 06

-Article 9

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph b

-Article 12

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 3

-Subparagraph (SX 210.12-04.(b))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

+ Details

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

- Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The net of the gross additions and gross reductions to the investment in and advance to the affiliate.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 320

-Section S99

-Paragraph 6

-Subparagraph (SX 210.12-14.1(b))

-URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611322-123010

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 14

-Paragraph 1

-Article 12

+ Details

Name:	us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 26

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3574-108585

+ Details

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

- Definition

Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

+ References

+ Details

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

- Definition

Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

+ Details

Name:	us-gaap_NetCashProvidedByUsedInOperatingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfDistributionsToAffiliates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Consolidating Financial Information of Guarantors and Issuers (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended					9 Months Ended		12 Months Ended		9 Months Ended		12 Months Ended		9 Months Ended		12 Months Ended		9 Months Ended		12 Months Ended		9 Months Ended		12 Months Ended		9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Jun. 03, 2014 Senior Unsecured Notes [Member] Notes Payable Due 2024 [Domain]	Mar. 31, 2013 Senior Unsecured Notes [Member] Notes Payable Due 2021 [Member] [Domain]	Sep. 28, 2014 Senior Unsecured Notes [Member] Notes Payable Due 2021 and 2024 [Member]	Sep. 28, 2014 Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Cedar Fair L.P. (Parent) [Member]	Sep. 28, 2014 Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Cedar Fair L.P. (Parent) [Member]	Sep. 28, 2014 Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 28, 2014 Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 28, 2014 Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 28, 2014 Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 28, 2014 Guarantor Subsidiaries [Member]	Sep. 29, 2013 Guarantor Subsidiaries [Member]	Sep. 28, 2014 Guarantor Subsidiaries [Member]	Sep. 29, 2013 Guarantor Subsidiaries [Member]	Sep. 28, 2014 Eliminations [Member]	Sep. 29, 2013 Eliminations [Member]	Sep. 28, 2014 Eliminations [Member]	Sep. 29, 2013 Eliminations [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Guarantor Subsidiaries [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Guarantor Subsidiaries [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Eliminations [Member]	Sep. 29, 2013 Scenario, Previously Reported [Member] Eliminations [Member]	Sep. 29, 2013 Scenario, Adjustment [Member]	Sep. 29, 2013 Scenario, Adjustment [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Guarantor Subsidiaries [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Guarantor Subsidiaries [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Eliminations [Member]	Sep. 29, 2013 Scenario, Adjustment [Member] Eliminations [Member]	Sep. 29, 2013 Scenario, Actual [Member]	Sep. 29, 2013 Scenario, Actual [Member]	Sep. 29, 2013 Scenario, Actual [Member] Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Scenario, Actual [Member] Cedar Fair L.P. (Parent) [Member]	Sep. 29, 2013 Scenario, Actual [Member] Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Scenario, Actual [Member] Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]	Sep. 29, 2013 Scenario, Actual [Member] Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Scenario, Actual [Member] Co-Issuer Subsidiary (Cedar Canada) [Member]	Sep. 29, 2013 Scenario, Actual [Member] Guarantor Subsidiaries [Member]	Sep. 29, 2013 Scenario, Actual [Member] Guarantor Subsidiaries [Member]	Sep. 29, 2013 Scenario, Actual [Member] Eliminations [Member]	Sep. 29, 2013 Scenario, Actual [Member] Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash from operating activities	$ 311,719	$ 316,955	$ 317,997	$ 324,848				$ 122,796	$ 140,022	$ 145,424	$ 212,330	$ 11,832	$ 40,030	$ (4,845)	$ (34,618)	$ 14,637	$ 10,864	$ 16,902	$ 19,455	$ 164,278	$ 139,212	$ 163,482	$ 140,854	$ (1,824)	$ (13,173)	$ (2,966)	$ (13,173)	$ 316,955	$ 324,848	$ 337,821	$ 258,843	$ 60,434	$ 42,367	$ 21,615	$ 32,927	$ 66,757	$ 52,457	$ (169,672)	$ (61,746)													$ 316,955	$ 324,848	$ 140,022	$ 212,330	$ 40,030	$ (34,618)	$ 10,864	$ 19,455	$ 139,212	$ 140,854	$ (13,173)	$ (13,173)
Investment in Joint Venture Operating Activities																																								0	0	(63,105)	24,507	(52,172)	(37,602)	(29,579)	(30,743)	(24,816)	(17,908)	169,672	61,746
Intercompany Receivable	0	0	0	0				0	0	0	0	13,794	41,768	16,049	46,143	0	0	0	0	(77,332)	(55,439)	(77,029)	(60,099)	63,538	13,671	60,980	13,956													0	0	0	0	(41,768)	(46,143)	0	0	55,439	60,099	(13,671)	(13,956)
Intercompany payable	0	0	0	0				100,601	134,695	78,459	71,020	(26,534)	(73,536)	(7,234)	(6,760)	3,486	(5,656)	6,025	(4,098)	(14,015)	(41,832)	(16,270)	(46,206)	(63,538)	(13,671)	(60,980)	(13,956)													0	0	(134,694)	(71,020)	73,536	6,760	5,655	4,098	41,832	46,206	13,671	13,956
Cash Dividend Paid to Parent																																								0	0	0	0	0	0	13,173	13,173	0	0	(13,173)	(13,173)
Net Cash Provided by (Used in) Investing Activities	(135,636)	(82,237)	(158,695)	(86,579)				(55,105)	(43,568)	(67,790)	(47,938)	13,537	41,768	15,792	46,142	(14,394)	(5,517)	(18,851)	(5,532)	(143,212)	(88,591)	(148,826)	(93,207)	63,538	13,671	60,980	13,956	(82,237)	(86,579)	(106,673)	(23,431)	(52,172)	(37,603)	(35,096)	(36,275)	(57,968)	(51,016)	169,672	61,746													(82,237)	(86,579)	(43,568)	(47,938)	41,768	46,142	(5,517)	(5,532)	(88,591)	(93,207)	13,671	13,956
Distributions paid to partners	(117,468)	(104,458)	(156,467)	(126,706)				(119,292)	(107,013)	(159,433)	(129,277)	0	2,555	0	2,571	0	(13,173)	0	(13,173)	0	0	0	0	1,824	13,173	2,966	13,173
Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease)																																								0	0	63,105	(24,507)	52,172	37,602	29,579	30,743	24,816	17,908	(169,672)	(61,746)
Intercompany Receivable Investing																																								0	0	0	0	41,768	46,143	0	0	(55,439)	(60,099)	13,671	13,956
Debt Instrument, Interest Rate, Stated Percentage					5.375%	5.25%
Subsidiary ownership percentage guaranteeing notes							100.00%
Subsidiary guarantor ownership percentage							100.00%
Net Cash Provided by (Used in) Financing Activities	(104,196)	(130,050)	(152,194)	(150,635)				(18,691)	11,546	(86,634)	(74,392)	(27,319)	(79,949)	(11,046)	(11,494)	17,543	(19,317)	19,770	(17,760)	(14,015)	(41,832)	(16,270)	(46,206)	(61,714)	(498)	(58,014)	(783)	(130,050)	(150,635)	(123,148)	(145,412)	(6,413)	(4,734)	(489)	(489)	0	0	0	0													(130,050)	(150,635)	11,546	(74,392)	(79,949)	(11,494)	(19,317)	(17,760)	(41,832)	(46,206)	(498)	(783)
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries																																								0	0	0	0	0	0	(13,173)	(13,173)		0	13,173	13,173
Intercompany Activity, Net, Financing Activities																																								$ 0	$ 0	$ 134,694	$ 71,020	$ (73,536)	$ (6,760)	$ (5,655)	$ (4,098)	$ (41,832)	$ (46,206)	$ (13,671)	$ (13,956)