Six Flags Entertainment (FUN) 10-Q 1 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 29, 2015	Apr. 24, 2015
DEI [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	29-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Entity Registrant Name	CEDAR FAIR L P
Entity Central Index Key	811532
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		0
Entity Unit, Units Outstanding		55,959,830

Unaudited_Condensed_Consolidat

Unaudited Condensed Consolidated Balance Sheets (USD $)	Mar. 29, 2015	Dec. 31, 2014	Mar. 30, 2014
In Thousands, unless otherwise specified
Current Assets:
Cash and cash equivalents	$19,725	$131,840	$8,867
Receivables	24,125	27,395	19,630
Inventories	37,369	25,883	38,264
Current deferred tax asset	40,827	9,265	26,653
Prepaid advertising	18,268	1,548	20,101
Other current assets	8,759	7,786	9,919
Total current assets	149,073	203,717	123,434
Property and Equipment:
Land	270,244	276,297	279,992
Land improvements	370,315	366,863	349,245
Buildings	595,688	599,907	581,525
Rides and equipment	1,540,227	1,535,705	1,485,418
Construction in progress	85,146	70,431	85,854
Total property and equipment, gross	2,861,620	2,849,203	2,782,034
Less accumulated depreciation	-1,303,356	-1,322,652	-1,248,072
Total property and equipment, net	1,558,264	1,526,551	1,533,962
Goodwill	219,883	228,291	233,528
Other Intangibes, net	36,983	38,191	38,920
Other Assets	41,698	41,569	43,391
Assets	2,005,901	2,038,319	1,973,235
Current Liabilities:
Current maturities of long-term debt	0	0	1,450
Accounts payable	38,265	23,933	45,028
Deferred revenue	92,664	61,161	70,148
Accrued interest	12,056	9,916	10,073
Accrued taxes	10,159	21,800	6,452
Accrued salaries, wages and benefits	26,111	34,102	24,519
Self-insurance reserves	22,785	23,377	22,696
Derivative Liability, Current	9,989	11,791	0
Other accrued liabilities	11,486	12,139	4,896
Total current liabilities	223,515	198,219	185,262
Deferred Tax Liability	153,125	152,513	157,281
Derivative Liability	19,252	14,649	27,789
Other Liabilities	15,351	17,871	7,755
Long-Term Debt:
Revolving credit loans	57,000	0	55,000
Term debt	608,850	608,850	617,400
Notes	950,000	950,000	901,957
Total long-term debt	1,615,850	1,558,850	1,574,357
Commitments and Contingencies
Partners' Equity:
Special L.P. interests	5,290	5,290	5,290
General partner	0	1	1
Limited partners, 55,952, 55,828 and 55,835 units outstanding at March 29, 2015, December 31, 2014 and March 30, 2014, respectively	-20,627	101,556	29,537
Accumulated other comprehensive loss	-5,855	-10,630	-14,037
Total partners' equity	-21,192	96,217	20,791
Total Partners' Equity and Liabilities	$2,005,901	$2,038,319	$1,973,235

Unaudited_Condensed_Consolidat1

Unaudited Condensed Consolidated Balance Sheets (Parenthetical)	Mar. 29, 2015	Dec. 31, 2014	Mar. 30, 2014
In Thousands, unless otherwise specified
Limited partners, units outstanding	55,952	55,828	55,835

Unaudited_Condensed_Consolidat2

Unaudited Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Net revenues:
Admissions	$22,783	$19,067
Food, merchandise and games	17,944	16,386
Accommodations, extra-charge products and other	6,090	5,013
Total net revenues	46,817	40,466
Costs and expenses:
Cost of food, merchandise, and games revenues	5,588	4,985
Operating expenses	78,130	80,350
Selling, general and administrative	25,818	21,404
Depreciation and amortization	4,011	4,307
Loss on impairment / retirement of fixed assets, net	2,903	997
Total costs and expenses	116,450	112,043
Operating loss	-69,633	-71,577
Interest expense	20,532	24,732
Net effect of swaps	-116	371
Unrealized/realized foreign currency loss	38,218	17,184
Interest income	-40	-73
Loss before taxes	-128,227	-113,791
Benefit for taxes	-44,394	-30,251
Net loss	-83,833	-83,540
Net loss allocated to general partner	-1	-1
Net loss allocated to limited partners	-83,832	-83,539
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	7,214	1,621
Unrealized loss on cash flow hedging derivatives	-2,439	-650
Other comprehensive income, (net of tax)	4,775	971
Total comprehensive loss	($79,058)	($82,569)
Basic earnings per limited partner unit:
Weighted average limited partner units outstanding	55,820	55,500
Net loss per limited partner unit	($1.50)	($1.51)
Diluted earnings per limited partner unit:
Weighted average limited partner units outstanding	55,820	55,500
Net loss per limited partner unit	($1.50)	($1.51)

Unaudited_Condensed_Consolidat3

Unaudited Condensed Consolidated Statement of Partners' Equity (USD $)	Total	Limited Partners [Member]	General Partner [Member]	Special L.P. Interests [Member]	AOCI Attributable to Parent [Member]	Accumulated Translation Adjustment [Member]	Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
In Thousands, unless otherwise specified
Beginning balance, value at Dec. 31, 2014	$96,217	$101,556	$1			$5,936	($16,566)
Beginning balance, units at Dec. 31, 2014		55,828
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Limited partnership unit options exercised		8
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited		-1
Issuance of limited partnership units as compensation		117
Net loss	-83,833	-83,832	-1
Partnership distribution declared ($0.75 per limited partnership unit)		-42,052
Expense recognized for limited partnership unit options		223
Tax effect of units involved in option exercises and treasury unit transactions		-1,299
Issuance of limited partnership units as compensation		4,777
Weighted average limited partner units outstanding	55,820
Current period activity, net of tax $477 at Mar. 29, 2015	-2,439						-2,439
Ending balance, value at Mar. 29, 2015	-21,192	-20,627	0	5,290	-5,855	13,150	-19,005
Current period activity, net of tax ($4,147) at Mar. 29, 2015	$7,214					$7,214
Ending balance, units at Mar. 29, 2015		55,952

Unaudited_Condensed_Consolidat4

Unaudited Condensed Consolidated Statement of Partners' Equity (Parenthetical) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 29, 2015
Foreign currency translation adjustment, tax	($4,147)
Unrealized loss on cash flow hedging derivatives, tax	$477
Partnership distribution declared, amount per limited partnership unit	$0.75

Unaudited_Condensed_Consolidat5

Unaudited Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
CASH FLOWS FOR OPERATING ACTIVITIES
Net loss	($83,833)	($83,540)
Adjustments to reconcile net loss to net cash for operating activities:
Depreciation and amortization	4,011	4,307
Loss on impairment / retirement of fixed assets, net	2,903	997
Net effect of swaps	-116	371
Non-cash expense	44,277	21,546
Net change in working capital	-25,208	-6,338
Net change in other assets/liabilities	-2,283	-20,599
Net cash for operating activities	-60,249	-83,256
CASH FLOWS FOR INVESTING ACTIVITIES
Purchase of preferred equity investment	-2,000	0
Capital expenditures	-59,730	-40,342
Net cash for investing activities	-61,730	-40,342
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	57,000	55,000
Distributions paid to partners	-42,052	-39,091
Excess tax benefit from unit-based compensation expense	-1,299	-568
Net cash for financing activities	13,649	15,341
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-3,785	-932
CASH AND CASH EQUIVALENTS
Net decrease for the period	-112,115	-109,189
Balance, beginning of period	131,840	118,056
Balance, end of period	19,725	8,867
SUPPLEMENTAL INFORMATION
Cash payments for interest expense	18,343	36,966
Interest capitalized	945	406
Cash payments for income taxes, net of refunds	297	605
Capital Expenditures Incurred but Not yet Paid	$8,187	$6,850

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 29, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements have been prepared from the financial records of Cedar Fair, L.P. (the Partnership) without audit and reflect all adjustments (consisting of normal recurring adjustments) which are, in the opinion of management, necessary to fairly present the results of the interim periods covered in this report. Due to the seasonal nature of the Partnership's amusement and water park operations, the results for any interim period may not indicative of the results expected for the full fiscal year.

Significant_Accounting_and_Rep

Significant Accounting and Reporting Policies	3 Months Ended
	Mar. 29, 2015
Accounting Policies [Abstract]
Significant Accounting and Reporting Policies	Significant Accounting and Reporting Policies:
	The Partnership’s unaudited condensed consolidated financial statements for the periods ended March 29, 2015 and March 30, 2014 included in this Form 10-Q report have been prepared in accordance with the accounting policies described in the Notes to Consolidated Financial Statements for the year ended December 31, 2014, which were included in the Form 10-K filed on February 26, 2015. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (the Commission). These financial statements should be read in conjunction with the financial statements and the notes thereto included in the Form 10-K referred to above.
	New Accounting Pronouncements
	In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). The amendments in ASU 2014-09 provide for a single, principles-based model for revenue recognition that replaces the existing revenue recognition guidance. ASU 2014-09 is effective for annual and interim periods beginning on or after December 15, 2016 and will replace most existing revenue recognition guidance under U.S. GAAP when it becomes effective. It permits the use of either a retrospective or cumulative effect transition method and early adoption is not permitted. The Partnership has not yet selected a transition method and is in the process of evaluating the effect this standard will have on the consolidated financial statements and related disclosures.

Interim_Reporting

Interim Reporting	3 Months Ended
	Mar. 29, 2015
Quarterly Financial Information Disclosure [Abstract]
Interim Reporting	Interim Reporting:
	The Partnership owns and operates eleven amusement parks, three separately gated outdoor water parks, one indoor water park and five hotels. Virtually all of the Partnership’s revenues from its seasonal amusement parks, as well as its outdoor water parks and other seasonal resort facilities, are realized during a 130- to 140-day operating period beginning in early May, with the major portion concentrated in the third quarter during the peak vacation months of July and August. Knott's Berry Farm is open daily on a year-round basis. Castaway Bay is generally open daily from Memorial Day to Labor Day, plus a limited daily schedule for the balance of the year.
	To assure that these highly seasonal operations will not result in misleading comparisons of current and subsequent interim periods, the Partnership has adopted the following accounting and reporting procedures for its seasonal parks: (a) revenues on multi-use tickets are recognized over the estimated number of visits expected for each type of ticket and are adjusted periodically during the operating season prior to the ticket expiration, which occurs no later than the close of the operating season or December 31 each year, (b) depreciation, advertising and certain seasonal operating costs are expensed during each park’s operating season, including certain costs incurred prior to the season which are amortized over the season, and (c) all other costs are expensed as incurred or ratably over the entire year.

LongLived_Assets

Long-Lived Assets	3 Months Ended
	Mar. 29, 2015
Property, Plant and Equipment [Abstract]
Long-Lived Assets	Long-Lived Assets:
	Long-lived assets are reviewed for impairment upon the occurrence of events or changes in circumstances that would indicate that the carrying value of the assets may not be recoverable. In order to determine if an asset has been impaired, assets are grouped and tested at the lowest level for which identifiable, independent cash flows are available. A significant amount of judgment is involved in determining if an indicator of impairment has occurred. Such indicators may include, among others: a significant decline in expected future cash flows; a sustained, significant decline in equity price and market capitalization; a significant adverse change in legal factors or in the business climate; unanticipated competition; and slower growth rates. Any adverse change in these factors could have a significant impact on the recoverability of these assets and could have a material impact on our consolidated financial statements.
	The long-lived operating asset impairment test involves a two-step process. The first step is a comparison of each asset group's carrying value to its estimated undiscounted future cash flows expected to result from the use of the assets, including disposition. Projected future cash flows reflect management's best estimates of economic and market conditions over the projected period, including growth rates in revenues and costs, estimates of future expected changes in operating margins and cash expenditures. Other significant estimates and assumptions include terminal value growth rates and future estimates of capital expenditures. If the carrying value of the asset group is higher than its undiscounted future cash flows, there is an indication that impairment exists and the second step must be performed to measure the amount of impairment loss. The amount of impairment is determined by comparing the implied fair value of the asset group to its carrying value in a manner consistent with the highest and best use of those assets.
	The Partnership estimates fair value of operating assets using an income, market, and/or cost approach. The income approach uses an asset group's projection of estimated operating results and cash flows that is discounted using a weighted-average cost of capital reflective of current market conditions. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The cost approach is based on the amount currently required to replace the service capacity of an asset adjusted for obsolescence. If the implied fair value of the assets is less than their carrying value, an impairment charge is recorded for the difference.
	Non-operating assets are evaluated for impairment based on changes in market conditions. When changes in market conditions are observed, impairment is estimated using a market-based approach. If the estimated fair value of the non-operating assets is less than their carrying value, an impairment charge is recorded for the difference.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 29, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets:
	In accordance with the applicable accounting rules, goodwill is not amortized, but, along with indefinite-lived trade-names, is evaluated for impairment on an annual basis or more frequently if indicators of impairment exist. As of March 29, 2015, there were no indicators of impairment. The Partnership's annual testing date is December 31.
	The Partnership tested goodwill and other indefinite-lived intangibles for impairment on December 31, 2014 and no impairment was indicated.
	A summary of changes in the Partnership’s carrying value of goodwill for the three months ended March 29, 2015 and March 30, 2014 is as follows:
	(In thousands)	Goodwill			Accumulated			Goodwill
		(gross)			Impairment			(net)
					Losses
	Balance at December 31, 2013	$	317,957		$	(79,868	)	$	238,089
	Foreign currency translation	(4,561		)	—			(4,561		)
	Balance at March 30, 2014	$	313,396		$	(79,868	)	$	233,528
	Balance at December 31, 2014	$	308,159		$	(79,868	)	$	228,291
	Foreign currency translation	(8,408		)	—			(8,408		)
	Balance at March 29, 2015	$	299,751		$	(79,868	)	$	219,883
	At March 29, 2015, December 31, 2014, and March 30, 2014 the Partnership’s other intangible assets consisted of the following:
	March 29, 2015	Gross			Accumulated			Net
		Carrying			Amortization			Carrying
		Amount						Value
	(In thousands)
	Other intangible assets:
	Trade names	$	36,492		$	—		$	36,492
	License / franchise agreements	816			325			491
	Total other intangible assets	$	37,308		$	325		$	36,983
	31-Dec-14
	(In thousands)
	Other intangible assets:
	Trade names	$	37,683		$	—		$	37,683
	License / franchise agreements	818			310			508
	Total other intangible assets	$	38,501		$	310		$	38,191
	30-Mar-14
	(In thousands)
	Other intangible assets:
	Trade names	$	38,424		$	—		$	38,424
	License / franchise agreements	881			385			496
	Total other intangible assets	$	39,305		$	385		$	38,920
	Amortization expense of other intangible assets is expected to be immaterial going forward.

LongTerm_Debt

Long-Term Debt	3 Months Ended
	Mar. 29, 2015
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt:
	In June of 2014, the Partnership issued $450 million of 5.375% senior unsecured notes ("June 2014 notes"), maturing in 2024, in a private placement. The net proceeds from the offering of the June 2014 notes were used to redeem in full all of the Partnership’s $405 million of 9.125% July 2010 senior unsecured notes that were scheduled to mature in 2018 (and which included $5.6 million of Original Issue Discount ("OID") to yield 9.375%), to satisfy and discharge the indenture governing the notes that were redeemed and for general corporate purposes.
	The Partnership's June 2014 notes pay interest semi-annually in June and December, with the principal due in full on June 1, 2024. The notes may be redeemed, in whole or in part, at any time prior to June 1, 2019 at a price equal to 100% of the principal amount of the notes redeemed plus a “make-whole” premium together with accrued and unpaid interest, if any, to the redemption date. Thereafter, the notes may be redeemed, in whole or in part, at various prices depending on the date redeemed. Prior to June 1, 2017, up to 35% of the notes may be redeemed with the net cash proceeds of certain equity offerings at a price equal to 105.375% together with accrued and unpaid interest.
	In March 2013, the Partnership issued $500 million of 5.25% senior unsecured notes ("March 2013 notes"), maturing in 2021, in a private placement. Concurrently with this offering, the Partnership entered into a new $885 million credit agreement (the "2013 Credit Agreement"), which included a $630 million senior secured term loan facility and a $255 million senior secured revolving credit facility. The terms of the senior secured term loan facility include a maturity date of March 6, 2020 and bear interest at a rate of LIBOR ("London InterBank Offering Rate") plus 250 bps with a LIBOR floor of 75 bps. The term loan amortizes at $6.3 million annually and allows interest to be paid on a 30-, 60-, or 90-day basis. The Partnership is currently paying interest on a 30-day basis. The net proceeds from the notes and borrowings under the 2013 Credit Agreement were used to repay in full all amounts outstanding under the previous credit facilities. The facilities provided under the 2013 Credit Agreement are collateralized by substantially all of the assets of the Partnership.
	Terms of the 2013 Credit Agreement include a revolving credit facility of a combined $255 million. Under the 2013 Credit Agreement, the Canadian portion of the revolving credit facility has a sub-limit of $15 million. U.S. denominated and Canadian denominated loans made under the revolving credit facility bear interest at a rate of LIBOR plus 225 bps (with no LIBOR floor). The revolving credit facility is scheduled to mature in March 2018 and also provides for the issuance of documentary and standby letters of credit. The 2013 Credit Agreement requires the Partnership to pay a commitment fee of 38 bps per annum on the unused portion of the credit facilities.
	The 2013 Credit Agreement requires the Partnership to maintain specified financial ratios, which if breached for any reason, including a decline in operating results, could result in an event of default under the agreement. The most restrictive of these ratios is the Consolidated Leverage Ratio which is measured quarterly on a trailing-twelve month basis. At the end of the first quarter of 2015, this ratio was set at 6.00x consolidated total debt (excluding the revolving debt)-to-consolidated EBITDA. The ratio will decrease by 0.25x each second quarter until it reaches 5.25x. Based on our trailing-twelve-month results ending March 29, 2015, we were in compliance with this ratio and all other covenants under the 2013 Credit Agreement as of March 29, 2015.
	The Partnership is allowed to make Restricted Payments, as defined in the 2013 Credit Agreement, of up to $60 million annually, so long as no default or event of default has occurred and is continuing and so long as the Partnership would be in compliance with certain financial ratios after giving effect to the payments. Additional Restricted Payments are allowed to be made based on an Excess-Cash-Flow formula, should the Partnership’s pro-forma Consolidated Leverage Ratio be less than or equal to 5.00x. Pursuant to the terms of the indentures governing the Partnership's June 2014 and March 2013 notes, the Partnership can make Restricted Payments of $60 million annually so long as no default or event of default has occurred and is continuing, and our ability to make additional Restricted Payments in 2015 and beyond is permitted should the Partnership's pro forma trailing-twelve-month Total-Indebtedness-to-Consolidated-Cash-Flow Ratio be less than or equal to 5.00x.
	The Partnership's March 2013 notes pay interest semi-annually in March and September, with the principal due in full on March 15, 2021. The notes may be redeemed, in whole or in part, at any time prior to March 15, 2016 at a price equal to 100% of the principal amount of the notes redeemed plus a “make-whole” premium together with accrued and unpaid interest, if any, to the redemption date. Thereafter, the notes may be redeemed, in whole or in part, at various prices depending on the date redeemed. Prior to March 15, 2016, up to 35% of the notes may be redeemed with the net cash proceeds of certain equity offerings at a price equal to 105.25% together with accrued and unpaid interest.
	As market conditions warrant, the Partnership may from time to time repurchase debt securities issued by the Partnership, in privately negotiated or open market transactions, by tender offer, exchange offer or otherwise.

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 29, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments:
	Derivative financial instruments are used within the Partnership’s overall risk management program to manage certain interest rate and foreign currency risks. By utilizing a derivative instrument to hedge our exposure to LIBOR rate changes, the Partnership is exposed to credit risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. To mitigate this risk, hedging instruments are placed with a counterparty that the Partnership believes poses minimal credit risk.
	The Partnership does not use derivative financial instruments for trading purposes.
	We have entered into several interest rate swaps that fix all of our variable rate term-debt payments. As of March 29, 2015, we have $800 million of variable-rate debt to fixed rates swaps that mature in December 2015 and fix LIBOR at a weighted average rate of 2.38%. These swaps have been de-designated as cash flow hedges. During the third quarter and fourth quarter of 2013, we entered into four forward-starting interest rate swap agreements that will effectively convert $500 million of variable-rate debt to fixed rates beginning in December of 2015. These swaps, which were designated as cash flow hedges, mature on December 31, 2018 and fix LIBOR at a weighted average rate of 2.94%.
	Fair Value of Derivative Instruments and the Classification in Condensed Consolidated Balance Sheet:
	(In thousands)		Condensed Consolidated		Fair Value as of				Fair Value as of			Fair Value as of
			Balance Sheet Location		March 29, 2015				December 31, 2014			March 30, 2014
	Derivatives designated as hedging instruments:
	Interest rate swaps		Derivative Liability		$	(19,252	)		$	(14,649	)	$	(6,657	)
	Total derivatives designated as hedging instruments				$	(19,252	)		$	(14,649	)	$	(6,657	)
	Derivatives not designated as hedging instruments:
	Interest rate swaps		Current Derivative Liability		$	(9,989	)		$	(11,791	)	$	—
	Interest rate swaps		Derivative Liability		$	—			$	—		$	(21,132	)
	Total derivatives not designated as hedging instruments				$	(9,989	)		$	(11,791	)	$	(21,132	)
	Net derivative liability				$	(29,241	)		$	(26,440	)	$	(27,789	)
	Derivatives Designated as Hedging Instruments
	Changes in fair value of highly effective hedges are recorded as a component of accumulated other comprehensive loss in the unaudited condensed consolidated balance sheets. Any ineffectiveness is recognized immediately in income. Amounts recorded as a component of accumulated other comprehensive loss are reclassified into earnings in the same period the forecasted transactions affect earnings. As of March 29, 2015 we have no amounts that are forecasted to be reclassified into earnings in the next twelve months.
	Derivatives Not Designated as Hedging Instruments
	Certain interest rate swap contracts were deemed ineffective in prior years and no longer qualified for hedge accounting. As a result of discontinued hedge accounting, the instruments are prospectively adjusted to fair value each reporting period through "Net effect of swaps" on the unaudited condensed consolidated statements of operations and comprehensive income. The amounts that were previously recorded as a component of accumulated other comprehensive loss prior to the de-designation are reclassified to earnings and a corresponding realized gain or loss will be recognized when the forecasted cash flow occurs. As of March 29, 2015, approximately $3.2 million of losses remain in accumulated comprehensive loss related to the effective cash flow hedge contracts prior to de-designation and all of which will be reclassified to earnings within the next 12 months.
	The following table presents our derivative portfolio along with their notional amounts and their fixed interest rates as of March 29, 2015.
		Interest Rate Swaps
	($'s in thousands)	Derivatives designated as hedging instruments							Derivatives not designated as hedging instruments
		Notional Amounts				Fixed Rate			Notional Amounts			Fixed Rate
		$	200,000			3	%		$	200,000		2.27	%
		100,000				3	%		150,000			2.43	%
		100,000				3	%		75,000			2.3	%
		100,000				2.7	%		70,000			2.54	%
									50,000			2.54	%
									50,000			2.54	%
									50,000			2.43	%
									50,000			2.29	%
									50,000			2.29	%
									30,000			2.54	%
									25,000			2.3	%
	Total $'s / Average Rate	$	500,000			2.94	%		$	800,000		2.38	%
	Effects of Derivative Instruments on Income (Loss) and Other Comprehensive Income (Loss) for the three-month periods ended March 29, 2015 and March 30, 2014:
	(In thousands)		Amount of Gain (Loss) Recognized in  Accumulated OCI on Derivatives (Effective Portion)								Amount and Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Amount and Location of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
	Derivatives designated as		Three months ended				Three months ended					Three months ended			Three months ended			Three months ended		Three months ended
	Cash Flow Hedging
	Relationships		3/29/15				3/30/14					3/29/15			3/30/14			3/29/15		3/30/14
	Interest rate swaps		$	(4,602	)		$	(2,742	)		Interest	$	—		$	—	Net effect of swaps	$	—	$	—
											Expense
	(In thousands)		Amount and Location of Gain (Loss) Recognized in Income on Derivative
	Derivatives not designated as Cash Flow				Three months ended				Three months ended
	Hedging Relationships				3/29/15				3/30/14
	Interest rate		Net effect of swaps		$	1,802			$	1,617
	swaps
	During the quarter ended March 29, 2015, the Partnership recognized $1.8 million in income for the gain on the derivatives not designated as cash flow hedges and $1.7 million of expense representing the regular amortization of amounts in AOCI. The effect of these amounts resulted in a benefit to earnings of $0.1 million recorded in “Net effect of swaps.”
	During the quarter ended March 30, 2014, the Partnership recognized $1.6 million in income for the gain on the derivatives not designated as cash flow hedges and $2.0 million of expense representing the amortization of amounts in AOCI. The effect of these amounts resulted in a charge to earnings of $0.4 million recorded in “Net effect of swaps.”

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 29, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements:
	The FASB Accounting Standards Codification (ASC) relating to fair value measurements emphasizes that fair value is a market-based measurement that should be determined based on assumptions (inputs) that market participants would use in pricing an asset or liability. Inputs may be observable or unobservable, and valuation techniques used to measure fair value should maximize the use of relevant observable inputs and minimize the use of unobservable inputs. Accordingly, the FASB’s ASC establishes a hierarchal disclosure framework that ranks the quality and reliability of information used to determine fair values. The hierarchy is associated with the level of pricing observability utilized in measuring fair value and defines three levels of inputs to the fair value measurement process—quoted prices are the most reliable valuation inputs, whereas model values that include inputs based on unobservable data are the least reliable. Each fair value measurement must be assigned to a level corresponding to the lowest level input that is significant to the fair value measurement in its entirety.
	The three broad levels of inputs defined by the fair value hierarchy are as follows:
	•	Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.
	•	Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
	•	Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.
	A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.
	The table below presents the balances of assets and liabilities measured at fair value as of March 29, 2015, December 31, 2014, and March 30, 2014 on a recurring basis:
			Total			Level 1		Level 2			Level 3
	March 29, 2015
	(In thousands)
	Interest rate swap agreements (1)		$	(19,252	)	$	—	$	(19,252	)	$	—
	Interest rate swap agreements (2)		(9,989		)	—		(9,989		)	—
	Net derivative liability		$	(29,241	)	$	—	$	(29,241	)	$	—
	31-Dec-14
	Interest rate swap agreements (1)		$	(14,649	)	$	—	$	(14,649	)	$	—
	Interest rate swap agreements (2)		$	(11,791	)	$	—	$	(11,791	)	$	—
	Net derivative liability		$	(26,440	)	$	—	$	(26,440	)	$	—
	March 30, 2014
	Interest rate swap agreements (1)		$	(6,657	)	$	—	$	(6,657	)	$	—
	Interest rate swap agreements (3)		$	(21,132	)	$	—	$	(21,132	)	$	—
	Net derivative liability		$	(27,789	)	$	—	$	(27,789	)	$	—
	-1	Designated as cash flow hedges and are included in “Derivative Liability” on the Unaudited Condensed Consolidated Balance Sheet
	-2	Not designated as cash flow hedges and are included in "Current Derivative Liability" on the Unaudited Condensed Consolidated Balance Sheet
	-3	Not designated as cash flow hedges and are included in "Derivative Liability" on the Unaudited Condensed Consolidated Balance Sheet
	Fair values of the interest rate swap agreements are determined using significant inputs, including the LIBOR forward curves, which are considered Level 2 observable market inputs. In addition, the Partnership considered the effect of its credit and non-performance risk on the fair values provided, and recognized an adjustment decreasing the net derivative liability by approximately $0.9 million as of March 29, 2015.
	The carrying value of cash and cash equivalents, revolver, accounts receivable, accounts payable, and accrued liabilities approximates fair value because of the short maturity of these instruments.
	There were no assets measured at fair value on a non-recurring basis at March 29, 2015, December 31, 2014, or March 30, 2014.
	The fair value of term debt at March 29, 2015 was approximately $610.4 million as compared to $605.8 million and $618.9 million December 31, 2014 and March 30, 2014, respectively, based on borrowing rates available to the Partnership as of those dates on long-term debt with similar terms and average maturities. The fair value of the Partnership's notes at March 29, 2015 was approximately $973.9 million as compared to $952.4 million and $938.6 million at December 31, 2014 and March 30, 2014, respectively, based on public trading levels as of those dates. The fair value of the term debt outstanding for all disclosed periods and the June 2014 notes at March 29, 2015 and December 31, 2014, was based on Level 2 inputs. The fair value of the July 2010 notes outstanding at March 30, 2014, and the March 2013 notes outstanding at March 29, 2015 and December 31, 2014, respectively, was based on Level 1 inputs.

Earnings_per_Unit

Earnings per Unit	3 Months Ended
	Mar. 29, 2015
Earnings Per Unit [Abstract]
Earnings Per Unit	Earnings per Unit:
	Net income per limited partner unit is calculated based on the following unit amounts:
		Three months ended
		3/29/15			3/30/14
		(In thousands
		except per unit amounts)
	Basic weighted average units outstanding	55,820			55,500
	Diluted weighted average units outstanding	55,820			55,500
	Net loss per unit - basic	$	(1.50	)	$	(1.51	)
	Net loss per unit - diluted	$	(1.50	)	$	(1.51	)
	The effect of out-of-the-money and/or antidilutive unit options on the three months ended March 29, 2015 and March 30, 2014, respectively, had they not been out of the money or antidilutive, would have been immaterial in all periods presented.

Income_and_Partnership_Taxes

Income and Partnership Taxes	3 Months Ended
	Mar. 29, 2015
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income and Partnership Taxes	Income and Partnership Taxes:
	Under the applicable accounting rules, income taxes are recognized for the amount of taxes payable by the Partnership’s corporate subsidiaries for the current year and for the impact of deferred tax assets and liabilities, which represent future tax consequences of events that have been recognized differently in the financial statements than for tax purposes. The income tax provision (benefit) for interim periods is determined by applying an estimated annual effective tax rate to the quarterly income (loss) of the Partnership’s corporate subsidiaries. In addition to income taxes on its corporate subsidiaries, the Partnership is subject to a publicly traded partnership tax (PTP tax) on partnership-level gross income (net revenues less cost of food, merchandise and games). As such, the Partnership’s total provision (benefit) for taxes includes amounts for both the PTP tax and for income taxes on its corporate subsidiaries.
	As of the first quarter of 2015 the Partnership has recorded $1.2 million of unrecognized tax benefits including interest and/or penalties related to state and local tax filing positions. The Partnership recognizes interest and/or penalties related to unrecognized tax benefits in the income tax provision. The Partnership does not anticipate that the balance of the unrecognized tax benefit will change significantly over the next 12 months.

Contingencies

Contingencies	3 Months Ended
	Mar. 29, 2015
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies:
	The Partnership is a party to a number of lawsuits arising in the normal course of business. In the opinion of management, none of these matters, beyond what has been disclosed within this document, are expected to have a material effect in the aggregate on the Partnership's financial statements.

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income by Component	3 Months Ended
	Mar. 29, 2015
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income by Component	Changes in Accumulated Other Comprehensive Income (Loss) by Component:
	The following tables reflect the changes in Accumulated Other Comprehensive Income (Loss) related to limited partners' equity for the three-month periods ended March 29, 2015 and March 30, 2014:
		Changes in Accumulated Other Comprehensive Income by Component (1)
	(In thousands)
			Gains and Losses
			on Cash Flow Hedges			Foreign Currency Items
									Total
	Balance at December 31, 2014		$	(16,566	)	$	5,936		$	(10,630	)
	Other comprehensive income before reclassifications, net of tax $701 and ($4,147), respectively		(3,901		)	7,214			3,313
	Amounts reclassified from accumulated other comprehensive income, net of tax ($224) (2)		1,462			—			1,462
	Net other comprehensive income		(2,439		)	7,214			4,775
	Balance at March 29, 2015		$	(19,005	)	$	13,150		$	(5,855	)
		Changes in Accumulated Other Comprehensive Income by Component (1)
	(In thousands)
			Gains and Losses
			on Cash Flow Hedges			Foreign Currency Items
									Total
	Balance at December 31, 2013		$	(15,013	)	$	5		$	(15,008	)
	Other comprehensive income before reclassifications, net of tax $413 and ($932), respectively		(2,328		)	1,621			(707		)
	Amounts reclassified from accumulated other comprehensive income, net of tax ($307) (2)		1,678			—			1,678
	Net other comprehensive income		(650		)	1,621			971
	Balance at March 30, 2014		$	(15,663	)	$	1,626		$	(14,037	)
	Reclassifications Out of Accumulated Other Comprehensive Income (1)
	(In thousands)
	Details about Accumulated Other Comprehensive Income Components		Amount Reclassified from Accumulated Other Comprehensive Income						Affected Line Item in the Statement Where Net Income is Presented
	Gains and losses on cash flow hedges		Three months ended			Three months ended
			3/29/15			3/30/14
	Interest rate contracts		$	1,686		$	1,985		Net effect of swaps
	Benefit for taxes		(224		)	(307		)	Benefit for taxes
			$	1,462		$	1,678
	(1) All amounts are net of tax. Amounts in parentheses indicate debits.
	(2) See Reclassifications Out of Accumulated Other Comprehensive Income table below for reclassification details.

Consolidating_Financial_Inform

Consolidating Financial Information of Guarantors and Issuers	3 Months Ended
	Mar. 29, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Consolidating Financial Information of Guarantors and Issuers	Consolidating Financial Information of Guarantors and Issuers:
	Cedar Fair, L.P., Canada's Wonderland Company ("Cedar Canada"), and Magnum Management Corporation ("Magnum") are the co-issuers of the Partnership's June 2014 and March 2013 notes (see Note 5). The notes have been fully and unconditionally guaranteed, on a joint and several basis, by each 100% owned subsidiary of Cedar Fair (other than Cedar Canada and Magnum) that guarantees the Partnership's senior secured credit facilities. There are no non-guarantor subsidiaries.
	The following consolidating schedules present condensed financial information for Cedar Fair, L.P., Cedar Canada, and Magnum, the co-issuers, and each 100% owned subsidiary of Cedar Fair (other than Cedar Canada and Magnum), the guarantors (on a combined basis), as of March 29, 2015, December 31, 2014, and March 30, 2014 and for the three month periods ended March 29, 2015 and March 30, 2014. In lieu of providing separate unaudited financial statements for the guarantor subsidiaries, the Partnership has included the accompanying condensed consolidating financial statements.
	The Unaudited Condensed Consolidating Statements of Cash Flows for the three month period ended March 30, 2014 has been revised to correct the presentation of certain intercompany transactions previously recorded as cash flows from operating activities. A summary of the changes are below:
	Condensed Consolidating Statements of Cash Flows
	For the Three Month Period Ended March 30, 2014
	(In thousands)	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	As reported - Net cash from (for) operating activities	$	(73,627	)	$	(3,001	)	$	(26,042	)	$	20,317		$	(903	)	$	(83,256	)
	Intercompany receivables (payments) receipts	—			23,497			—			(29,591		)	6,094			—
	Intercompany payables (payments) receipts	67,320			(46,917		)	(1,201		)	(13,108		)	(6,094		)	—
	As corrected - Net cash from (for) operating activities	$	(6,307	)	$	(26,421	)	$	(27,243	)	$	(22,382	)	$	(903	)	$	(83,256	)
	As reported - Net cash from (for) investing activities	$	(16,379	)	$	(4	)	$	(5,077	)	$	(18,882	)	$	—		$	(40,342	)
	Intercompany receivables (payments) receipts	—			(23,497		)	—			29,591			(6,094		)	—
	As corrected - Net cash from (for) investing activities	$	(16,379	)	$	(23,501	)	$	(5,077	)	$	10,709		$	(6,094	)	$	(40,342	)
	As reported - Net cash from (for) financing activities	$	15,006		$	(568	)	$	—		$	—		$	903		$	15,341
	Intercompany payables (payments) receipts	(67,320		)	46,917			1,201			13,108			6,094			—
	As corrected - Net cash from (for) financing activities	$	(52,314	)	$	46,349		$	1,201		$	13,108		$	6,997		$	15,341
	These revisions had no effect on the Partnership's Unaudited Condensed Consolidated Balance Sheets, Statements of Operations and Comprehensive Income, Statements of Partner's Equity, or Statements of Cash Flows.
	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING BALANCE SHEET
	March 29, 2015
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	—		$	—		$	14,881		$	4,844		$	—		$	19,725
	Receivables	1			89,060			115,830			546,424			(727,190		)	24,125
	Inventories	—			152			2,070			35,147			—			37,369
	Current deferred tax asset	—			36,111			674			4,042			—			40,827
	Other current assets	80			369			2,382			24,196			—			27,027
		81			125,692			135,837			614,653			(727,190		)	149,073
	Property and Equipment (net)	—			5,621			202,853			1,349,790			—			1,558,264
	Investment in Park	622,008			765,178			160,401			11,776			(1,559,363		)	—
	Goodwill	674			—			99,603			119,606			—			219,883
	Other Intangibles, net	—			—			14,119			22,864			—			36,983
	Deferred Tax Asset	—			24,215			—			—			(24,215		)	—
	Other Assets	5,470			20,488			7,223			8,517			—			41,698
		$	628,233		$	941,194		$	620,036		$	2,127,206		$	(2,310,768	)	$	2,005,901
	LIABILITIES AND PARTNERS’ EQUITY
	Current Liabilities:
	Current maturities of long-term debt	$	—		$	—		$	—		$	—		$	—		$	—
	Accounts payable	276,100			199,361			2,424			287,570			(727,190		)	38,265
	Deferred revenue	—			92			6,077			86,495			—			92,664
	Accrued interest	1,595			1,526			7,943			992			—			12,056
	Accrued taxes	1,792			503			749			7,115			—			10,159
	Accrued salaries, wages and benefits	—			21,608			771			3,732			—			26,111
	Self-insurance reserves	—			8,031			1,413			13,341			—			22,785
	Current derivative liability	5,980			4,009			—			—			—			9,989
	Other accrued liabilities	864			3,365			99			7,158			—			11,486
		286,331			238,495			19,476			406,403			(727,190		)	223,515
	Deferred Tax Liability	—			—			49,695			127,645			(24,215		)	153,125
	Derivative Liability	11,197			8,055			—			—			—			19,252
	Other Liabilities	—			3,707			—			11,644			—			15,351
	Long-Term Debt:
	Revolving credit loans	57,000			—			—			—			—			57,000
	Term debt	—			247,890			13,991			346,969			—			608,850
	Notes	294,897			205,103			450,000			—			—			950,000
		351,897			452,993			463,991			346,969			—			1,615,850
	Equity	(21,192		)	237,944			86,874			1,234,545			(1,559,363		)	(21,192		)
		$	628,233		$	941,194		$	620,036		$	2,127,206		$	(2,310,768	)	$	2,005,901
	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING BALANCE SHEET
	31-Dec-14
	(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
ASSETS
Current Assets:
Cash and cash equivalents	$	80,000		$	382		$	45,519		$	5,939		$	—		$	131,840
Receivables	8			143,931			85,838			634,112			(836,494		)	27,395
Inventories	—			2,074			1,594			22,215			—			25,883
Current deferred tax asset	—			4,547			674			4,044			—			9,265
Other current assets	680			2,079			23,818			5,905			(23,148		)	9,334
	80,688			153,013			157,443			672,215			(859,642		)	203,717
Property and Equipment (net)	470,851			5,630			218,260			831,810			—			1,526,551
Investment in Park	544,340			812,549			163,904			43,659			(1,564,452		)	—
Goodwill	9,061			—			108,012			111,218			—			228,291
Other Intangibles, net	—			—			15,312			22,879			—			38,191
Deferred Tax Asset	—			24,827			—			—			(24,827		)	—
Other Assets	10,615			20,874			8,034			2,046			—			41,569
	$	1,115,555		$	1,016,893		$	670,965		$	1,683,827		$	(2,448,921	)	$	2,038,319
LIABILITIES AND PARTNERS’ EQUITY
Current Liabilities:
Accounts payable	$	352,518		$	203,895		$	32,691		$	271,323		$	(836,494	)	$	23,933
Deferred revenue	—			60			4,592			56,509			—			61,161
Accrued interest	4,637			3,223			2,056			—			—			9,916
Accrued taxes	4,309			—			—			40,639			(23,148		)	21,800
Accrued salaries, wages and benefits	—			25,851			1,103			7,148			—			34,102
Self-insurance reserves	—			5,386			1,565			16,426			—			23,377
Current derivative liability	7,062			4,729			—			—			—			11,791
Other accrued liabilities	508			8,134			122			3,375			—			12,139
	369,034			251,278			42,129			395,420			(859,642		)	198,219
Deferred Tax Liability	—			—			49,695			127,645			(24,827		)	152,513
Derivative Liability	8,438			6,211			—			—			—			14,649
Other Liabilities	—			6,105			—			11,766			—			17,871
Long-Term Debt:
Term debt	346,969			247,890			13,991			—			—			608,850
Notes	294,897			205,103			450,000			—			—			950,000
	641,866			452,993			463,991			—			—			1,558,850
Equity	96,217			300,306			115,150			1,148,996			(1,564,452		)	96,217
	$	1,115,555		$	1,016,893		$	670,965		$	1,683,827		$	(2,448,921	)	$	2,038,319
CEDAR FAIR, L.P.
UNAUDITED CONDENSED CONSOLIDATING BALANCE SHEET
March 30, 2014
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
ASSETS
Current Assets:
Cash and cash equivalents	$	—		$	571		$	3,524		$	4,772		$	—		$	8,867
Receivables	59			96,547			76,669			530,662			(684,307		)	19,630
Inventories	—			3,794			2,841			31,629			—			38,264
Current deferred tax asset	—			22,409			800			3,444			—			26,653
Other current assets	325			10,578			5,589			15,891			(2,363		)	30,020
	384			133,899			89,423			586,398			(686,670		)	123,434
Property and Equipment (net)	455,780			8,110			240,175			829,897			—			1,533,962
Investment in Park	443,179			744,425			138,604			35,052			(1,361,260		)	—
Goodwill	9,061			—			113,249			111,218			—			233,528
Other Intangibles, net	—			—			16,037			22,883			—			38,920
Deferred Tax Asset	—			30,296			—			117			(30,413		)	—
Other Assets	12,213			22,179			6,087			2,912			—			43,391
	$	920,617		$	938,909		$	603,575		$	1,588,477		$	(2,078,343	)	$	1,973,235
LIABILITIES AND PARTNERS’ EQUITY
Current Liabilities:
Current maturities of long-term debt	$	827		$	590		$	33		$	—		$	—		$	1,450
Accounts payable	173,364			230,516			10,818			314,637			(684,307		)	45,028
Deferred revenue	—			85			4,048			66,015			—			70,148
Accrued interest	2,580			1,567			5,926			—			—			10,073
Accrued taxes	4,757			849			—			3,209			(2,363		)	6,452
Accrued salaries, wages and benefits	—			18,183			503			5,833			—			24,519
Self-insurance reserves	—			5,431			1,664			15,601			—			22,696
Other accrued liabilities	280			3,086			125			1,405			—			4,896
	181,808			260,307			23,117			406,700			(686,670		)	185,262
Deferred Tax Liability	—			—			56,045			131,649			(30,413		)	157,281
Derivative Liability	16,281			11,508			—			—			—			27,789
Other Liabilities	—			4,358			—			3,397			—			7,755
Long-Term Debt:
Revolving credit loans	55,000			—			—			—			—			55,000
Term debt	351,840			251,371			14,189			—			—			617,400
Notes	294,897			205,103			401,957			—			—			901,957
	701,737			456,474			416,146			—			—			1,574,357
Equity	20,791			206,262			108,267			1,046,731			(1,361,260		)	20,791
	$	920,617		$	938,909		$	603,575		$	1,588,477		$	(2,078,343	)	$	1,973,235
CEDAR FAIR, L.P.
UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Three Months Ended March 29, 2015
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
Net revenues	$	(1,383	)	$	4,020		$	78		$	46,737		$	(2,635	)	$	46,817
Costs and expenses:
Cost of food, merchandise, and games revenues	—			—			—			5,588			—			5,588
Operating expenses	134			23,057			4,971			52,603			(2,635		)	78,130
Selling, general and administrative	799			13,275			1,743			10,001			—			25,818
Depreciation and amortization	—			9			—			4,002			—			4,011
Loss on impairment / retirement of fixed assets, net	—			—			—			2,903			—			2,903
	933			36,341			6,714			75,097			(2,635		)	116,450
Operating loss	(2,316		)	(32,321		)	(6,636		)	(28,360		)	—			(69,633		)
Interest expense (income), net	7,836			6,837			6,120			(301		)	—			20,492
Net effect of swaps	14			(130		)	—			—			—			(116		)
Unrealized / realized foreign currency loss	—			—			38,218			—			—			38,218
Other (income) expense	188			(4,816		)	1,046			3,582			—			—
Loss from investment in affiliates	72,786			51,745			3,503			35,489			(163,523		)	—
Income (loss) before taxes	(83,140		)	(85,957		)	(55,523		)	(67,130		)	163,523			(128,227		)
Provision (benefit) for taxes	693			(13,172		)	(20,024		)	(11,891		)	—			(44,394		)
Net loss	$	(83,833	)	$	(72,785	)	$	(35,499	)	$	(55,239	)	$	163,523		$	(83,833	)
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	7,214			—			7,214			—			(7,214		)	7,214
Unrealized loss on cash flow hedging derivatives	(2,439		)	(777		)	—			—			777			(2,439		)
Other comprehensive income (loss), (net of tax)	4,775			(777		)	7,214			—			(6,437		)	4,775
Total Comprehensive loss	$	(79,058	)	$	(73,562	)	$	(28,285	)	$	(55,239	)	$	157,086		$	(79,058	)
CEDAR FAIR, L.P.
UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Three Months Ended March 30, 2014
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
Net revenues	$	4,755		$	8,679		$	151		$	40,312		$	(13,431	)	$	40,466
Costs and expenses:
Cost of food, merchandise, and games revenues	—			—			1			4,984			—			4,985
Operating expenses	1,348			22,462			6,937			63,034			(13,431		)	80,350
Selling, general and administrative	1,396			16,672			873			2,463			—			21,404
Depreciation and amortization	474			9			—			3,824			—			4,307
Loss on impairment / retirement of fixed assets, net	249			—			—			748			—			997
	3,467			39,143			7,811			75,053			(13,431		)	112,043
Operating income	1,288			(30,464		)	(7,660		)	(34,741		)	—			(71,577		)
Interest expense, net	10,199			7,011			9,468			(2,019		)	—			24,659
Net effect of swaps	194			177			—			—			—			371
Unrealized / realized foreign currency loss	—			—			17,184			—			—			17,184
Other (income) expense	187			(3,274		)	374			2,713			—			—
(Income) loss from investment in affiliates	73,588			47,143			4,064			28,244			(153,039		)	—
Income (loss) before taxes	(82,880		)	(81,521		)	(38,750		)	(63,679		)	153,039			(113,791		)
Provision (benefit) for taxes	660			(10,422		)	(10,506		)	(9,983		)	—			(30,251		)
Net income (loss)	$	(83,540	)	$	(71,099	)	$	(28,244	)	$	(53,696	)	$	153,039		$	(83,540	)
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	1,621			—			1,621			—			(1,621		)	1,621
Unrealized income (loss) on cash flow hedging derivatives	(650		)	(173		)	—			—			173			(650		)
Other comprehensive income (loss), (net of tax)	971			(173		)	1,621			—			(1,448		)	971
Total Comprehensive Income (loss)	$	(82,569	)	$	(71,272	)	$	(26,623	)	$	(53,696	)	$	151,591		$	(82,569	)
CEDAR FAIR, L.P.
UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Three Months Ended March 29, 2015
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
NET CASH FROM (FOR) OPERATING ACTIVITIES	$	(17,967	)	$	(44,980	)	$	(6,910	)	$	10,174		$	(566	)	$	(60,249	)
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Intercompany receivables (payments) receipts	—			—			(10,594		)	46,961			(36,367		)	—
Purchase of preferred equity investment	—			(2,000		)	—			—			—			(2,000		)
Capital expenditures	—			—			(1,500		)	(58,230		)	—			(59,730		)
Net cash for investing activities	—			(2,000		)	(12,094		)	(11,269		)	(36,367		)	(61,730		)
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Net borrowings on revolving credit loans	57,000			—			—			—			—			57,000
Distributions paid	(42,618		)	—			—			—			566			(42,052		)
Intercompany payables (payments) receipts	(76,415		)	47,897			(7,849		)	—			36,367			—
Excess tax benefit from unit-based compensation expense	—			(1,299		)	—			—			—			(1,299		)
Net cash from (for) financing activities	(62,033		)	46,598			(7,849		)	—			36,933			13,649
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(3,785		)	—			—			(3,785		)
CASH AND CASH EQUIVALENTS
Net decrease for the period	(80,000		)	(382		)	(30,638		)	(1,095		)	—			(112,115		)
Balance, beginning of period	80,000			382			45,519			5,939			—			131,840
Balance, end of period	$	—		$	—		$	14,881		$	4,844		$	—		$	19,725
CEDAR FAIR, L.P.
UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Three Months Ended March 30, 2014
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
NET CASH FOR OPERATING	$	(6,307	)	$	(26,421	)	$	(27,243	)	$	(22,382	)	$	(903	)	$	(83,256	)
ACTIVITIES
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Intercompany receivables (payments) receipts	—			(23,497		)	—			29,591			(6,094		)	—
Capital expenditures	(16,379		)	(4		)	(5,077		)	(18,882		)	—			(40,342		)
Net cash from (for) investing activities	(16,379		)	(23,501		)	(5,077		)	10,709			(6,094		)	(40,342		)
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Net borrowings on revolving credit loans	55,000			—			—			—			—			55,000
Distributions/dividends (paid) received	(39,994		)	—			—			—			903			(39,091		)
Intercompany payables (payments) receipts	(67,320		)	46,917			1,201			13,108			6,094			—
Excess tax benefit from unit-based compensation expense	—			(568		)	—			—			—			(568		)
Net cash from (for) financing activities	(52,314		)	46,349			1,201			13,108			6,997			15,341
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(932		)	—			—			(932		)
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	(75,000		)	(3,573		)	(32,051		)	1,435			—			(109,189		)
Balance, beginning of period	75,000			4,144			35,575			3,337			—			118,056
Balance, end of period	$	—		$	571		$	3,524		$	4,772		$	—		$	8,867

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 29, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of changes in Partnership's carrying value of goodwill	A summary of changes in the Partnership’s carrying value of goodwill for the three months ended March 29, 2015 and March 30, 2014 is as follows:
	(In thousands)	Goodwill			Accumulated			Goodwill
		(gross)			Impairment			(net)
					Losses
	Balance at December 31, 2013	$	317,957		$	(79,868	)	$	238,089
	Foreign currency translation	(4,561		)	—			(4,561		)
	Balance at March 30, 2014	$	313,396		$	(79,868	)	$	233,528
	Balance at December 31, 2014	$	308,159		$	(79,868	)	$	228,291
	Foreign currency translation	(8,408		)	—			(8,408		)
	Balance at March 29, 2015	$	299,751		$	(79,868	)	$	219,883
Partnership's other intangible assets	At March 29, 2015, December 31, 2014, and March 30, 2014 the Partnership’s other intangible assets consisted of the following:
	March 29, 2015	Gross			Accumulated			Net
		Carrying			Amortization			Carrying
		Amount						Value
	(In thousands)
	Other intangible assets:
	Trade names	$	36,492		$	—		$	36,492
	License / franchise agreements	816			325			491
	Total other intangible assets	$	37,308		$	325		$	36,983
	31-Dec-14
	(In thousands)
	Other intangible assets:
	Trade names	$	37,683		$	—		$	37,683
	License / franchise agreements	818			310			508
	Total other intangible assets	$	38,501		$	310		$	38,191
	30-Mar-14
	(In thousands)
	Other intangible assets:
	Trade names	$	38,424		$	—		$	38,424
	License / franchise agreements	881			385			496
	Total other intangible assets	$	39,305		$	385		$	38,920

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 29, 2015
Derivative [Line Items]
Fair value of derivative instruments in Condensed Consolidated Balance Sheet	Fair Value of Derivative Instruments and the Classification in Condensed Consolidated Balance Sheet:
	(In thousands)		Condensed Consolidated		Fair Value as of				Fair Value as of			Fair Value as of
			Balance Sheet Location		March 29, 2015				December 31, 2014			March 30, 2014
	Derivatives designated as hedging instruments:
	Interest rate swaps		Derivative Liability		$	(19,252	)		$	(14,649	)	$	(6,657	)
	Total derivatives designated as hedging instruments				$	(19,252	)		$	(14,649	)	$	(6,657	)
	Derivatives not designated as hedging instruments:
	Interest rate swaps		Current Derivative Liability		$	(9,989	)		$	(11,791	)	$	—
	Interest rate swaps		Derivative Liability		$	—			$	—		$	(21,132	)
	Total derivatives not designated as hedging instruments				$	(9,989	)		$	(11,791	)	$	(21,132	)
	Net derivative liability				$	(29,241	)		$	(26,440	)	$	(27,789	)
Effects of derivative instruments on income (loss) and other comprehensive income (loss)	Effects of Derivative Instruments on Income (Loss) and Other Comprehensive Income (Loss) for the three-month periods ended March 29, 2015 and March 30, 2014:
	(In thousands)		Amount of Gain (Loss) Recognized in  Accumulated OCI on Derivatives (Effective Portion)								Amount and Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Amount and Location of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
	Derivatives designated as		Three months ended				Three months ended					Three months ended			Three months ended			Three months ended		Three months ended
	Cash Flow Hedging
	Relationships		3/29/15				3/30/14					3/29/15			3/30/14			3/29/15		3/30/14
	Interest rate swaps		$	(4,602	)		$	(2,742	)		Interest	$	—		$	—	Net effect of swaps	$	—	$	—
											Expense
	(In thousands)		Amount and Location of Gain (Loss) Recognized in Income on Derivative
	Derivatives not designated as Cash Flow				Three months ended				Three months ended
	Hedging Relationships				3/29/15				3/30/14
	Interest rate		Net effect of swaps		$	1,802			$	1,617
	swaps
Forward Starting Interest Rate Swap [Member]
Derivative [Line Items]
Derivative instruments, notional amounts outstanding and interest rates	The following table presents our derivative portfolio along with their notional amounts and their fixed interest rates as of March 29, 2015.
		Interest Rate Swaps
	($'s in thousands)	Derivatives designated as hedging instruments							Derivatives not designated as hedging instruments
		Notional Amounts				Fixed Rate			Notional Amounts			Fixed Rate
		$	200,000			3	%		$	200,000		2.27	%
		100,000				3	%		150,000			2.43	%
		100,000				3	%		75,000			2.3	%
		100,000				2.7	%		70,000			2.54	%
									50,000			2.54	%
									50,000			2.54	%
									50,000			2.43	%
									50,000			2.29	%
									50,000			2.29	%
									30,000			2.54	%
									25,000			2.3	%
	Total $'s / Average Rate	$	500,000			2.94	%		$	800,000		2.38	%

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 29, 2015
Fair Value Disclosures [Abstract]
Assets and liabilities measured at fair value on recurring basis	The table below presents the balances of assets and liabilities measured at fair value as of March 29, 2015, December 31, 2014, and March 30, 2014 on a recurring basis:
			Total			Level 1		Level 2			Level 3
	March 29, 2015
	(In thousands)
	Interest rate swap agreements (1)		$	(19,252	)	$	—	$	(19,252	)	$	—
	Interest rate swap agreements (2)		(9,989		)	—		(9,989		)	—
	Net derivative liability		$	(29,241	)	$	—	$	(29,241	)	$	—
	31-Dec-14
	Interest rate swap agreements (1)		$	(14,649	)	$	—	$	(14,649	)	$	—
	Interest rate swap agreements (2)		$	(11,791	)	$	—	$	(11,791	)	$	—
	Net derivative liability		$	(26,440	)	$	—	$	(26,440	)	$	—
	March 30, 2014
	Interest rate swap agreements (1)		$	(6,657	)	$	—	$	(6,657	)	$	—
	Interest rate swap agreements (3)		$	(21,132	)	$	—	$	(21,132	)	$	—
	Net derivative liability		$	(27,789	)	$	—	$	(27,789	)	$	—
	-1	Designated as cash flow hedges and are included in “Derivative Liability” on the Unaudited Condensed Consolidated Balance Sheet
	-2	Not designated as cash flow hedges and are included in "Current Derivative Liability" on the Unaudited Condensed Consolidated Balance Sheet
	-3	Not designated as cash flow hedges and are included in "Derivative Liability" on the Unaudited Condensed Consolidated Balance Sheet

Earnings_per_Unit_Tables

Earnings per Unit (Tables)	3 Months Ended
	Mar. 29, 2015
Earnings Per Unit [Abstract]
Net income (loss) per limited partner unit	Net income per limited partner unit is calculated based on the following unit amounts:
		Three months ended
		3/29/15			3/30/14
		(In thousands
		except per unit amounts)
	Basic weighted average units outstanding	55,820			55,500
	Diluted weighted average units outstanding	55,820			55,500
	Net loss per unit - basic	$	(1.50	)	$	(1.51	)
	Net loss per unit - diluted	$	(1.50	)	$	(1.51	)

Changes_in_Accumulated_Other_C1

Changes in Accumulated Other Comprehensive Income by Component (Tables)	3 Months Ended
	Mar. 29, 2015
Equity [Abstract]
Changes in accumulated other comprehensive income (loss)
	Reclassifications Out of Accumulated Other Comprehensive Income (1)
	(In thousands)
	Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income						Affected Line Item in the Statement Where Net Income is Presented
	Gains and losses on cash flow hedges	Three months ended			Three months ended
		3/29/15			3/30/14
	Interest rate contracts	$	1,686		$	1,985		Net effect of swaps
	Benefit for taxes	(224		)	(307		)	Benefit for taxes
		$	1,462		$	1,678
Reclassification out of accumulated other comprehensive income
	Reclassifications Out of Accumulated Other Comprehensive Income (1)
	(In thousands)
	Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income						Affected Line Item in the Statement Where Net Income is Presented
	Gains and losses on cash flow hedges	Three months ended			Three months ended
		3/29/15			3/30/14
	Interest rate contracts	$	1,686		$	1,985		Net effect of swaps
	Benefit for taxes	(224		)	(307		)	Benefit for taxes
		$	1,462		$	1,678

Consolidating_Financial_Inform1

Consolidating Financial Information of Guarantors and Issuers (Tables)	3 Months Ended
	Mar. 29, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Error Corrections and Prior Period Adjustments
	Condensed Consolidating Statements of Cash Flows
	For the Three Month Period Ended March 30, 2014
	(In thousands)	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	As reported - Net cash from (for) operating activities	$	(73,627	)	$	(3,001	)	$	(26,042	)	$	20,317		$	(903	)	$	(83,256	)
	Intercompany receivables (payments) receipts	—			23,497			—			(29,591		)	6,094			—
	Intercompany payables (payments) receipts	67,320			(46,917		)	(1,201		)	(13,108		)	(6,094		)	—
	As corrected - Net cash from (for) operating activities	$	(6,307	)	$	(26,421	)	$	(27,243	)	$	(22,382	)	$	(903	)	$	(83,256	)
	As reported - Net cash from (for) investing activities	$	(16,379	)	$	(4	)	$	(5,077	)	$	(18,882	)	$	—		$	(40,342	)
	Intercompany receivables (payments) receipts	—			(23,497		)	—			29,591			(6,094		)	—
	As corrected - Net cash from (for) investing activities	$	(16,379	)	$	(23,501	)	$	(5,077	)	$	10,709		$	(6,094	)	$	(40,342	)
	As reported - Net cash from (for) financing activities	$	15,006		$	(568	)	$	—		$	—		$	903		$	15,341
	Intercompany payables (payments) receipts	(67,320		)	46,917			1,201			13,108			6,094			—
	As corrected - Net cash from (for) financing activities	$	(52,314	)	$	46,349		$	1,201		$	13,108		$	6,997		$	15,341
Condensed Consolidating Balance Sheet	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING BALANCE SHEET
	March 29, 2015
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	—		$	—		$	14,881		$	4,844		$	—		$	19,725
	Receivables	1			89,060			115,830			546,424			(727,190		)	24,125
	Inventories	—			152			2,070			35,147			—			37,369
	Current deferred tax asset	—			36,111			674			4,042			—			40,827
	Other current assets	80			369			2,382			24,196			—			27,027
		81			125,692			135,837			614,653			(727,190		)	149,073
	Property and Equipment (net)	—			5,621			202,853			1,349,790			—			1,558,264
	Investment in Park	622,008			765,178			160,401			11,776			(1,559,363		)	—
	Goodwill	674			—			99,603			119,606			—			219,883
	Other Intangibles, net	—			—			14,119			22,864			—			36,983
	Deferred Tax Asset	—			24,215			—			—			(24,215		)	—
	Other Assets	5,470			20,488			7,223			8,517			—			41,698
		$	628,233		$	941,194		$	620,036		$	2,127,206		$	(2,310,768	)	$	2,005,901
	LIABILITIES AND PARTNERS’ EQUITY
	Current Liabilities:
	Current maturities of long-term debt	$	—		$	—		$	—		$	—		$	—		$	—
	Accounts payable	276,100			199,361			2,424			287,570			(727,190		)	38,265
	Deferred revenue	—			92			6,077			86,495			—			92,664
	Accrued interest	1,595			1,526			7,943			992			—			12,056
	Accrued taxes	1,792			503			749			7,115			—			10,159
	Accrued salaries, wages and benefits	—			21,608			771			3,732			—			26,111
	Self-insurance reserves	—			8,031			1,413			13,341			—			22,785
	Current derivative liability	5,980			4,009			—			—			—			9,989
	Other accrued liabilities	864			3,365			99			7,158			—			11,486
		286,331			238,495			19,476			406,403			(727,190		)	223,515
	Deferred Tax Liability	—			—			49,695			127,645			(24,215		)	153,125
	Derivative Liability	11,197			8,055			—			—			—			19,252
	Other Liabilities	—			3,707			—			11,644			—			15,351
	Long-Term Debt:
	Revolving credit loans	57,000			—			—			—			—			57,000
	Term debt	—			247,890			13,991			346,969			—			608,850
	Notes	294,897			205,103			450,000			—			—			950,000
		351,897			452,993			463,991			346,969			—			1,615,850
	Equity	(21,192		)	237,944			86,874			1,234,545			(1,559,363		)	(21,192		)
		$	628,233		$	941,194		$	620,036		$	2,127,206		$	(2,310,768	)	$	2,005,901
	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING BALANCE SHEET
	31-Dec-14
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	80,000		$	382		$	45,519		$	5,939		$	—		$	131,840
	Receivables	8			143,931			85,838			634,112			(836,494		)	27,395
	Inventories	—			2,074			1,594			22,215			—			25,883
	Current deferred tax asset	—			4,547			674			4,044			—			9,265
	Other current assets	680			2,079			23,818			5,905			(23,148		)	9,334
		80,688			153,013			157,443			672,215			(859,642		)	203,717
	Property and Equipment (net)	470,851			5,630			218,260			831,810			—			1,526,551
	Investment in Park	544,340			812,549			163,904			43,659			(1,564,452		)	—
	Goodwill	9,061			—			108,012			111,218			—			228,291
	Other Intangibles, net	—			—			15,312			22,879			—			38,191
	Deferred Tax Asset	—			24,827			—			—			(24,827		)	—
	Other Assets	10,615			20,874			8,034			2,046			—			41,569
		$	1,115,555		$	1,016,893		$	670,965		$	1,683,827		$	(2,448,921	)	$	2,038,319
	LIABILITIES AND PARTNERS’ EQUITY
	Current Liabilities:
Accounts payable	$	352,518		$	203,895		$	32,691		$	271,323		$	(836,494	)	$	23,933
Deferred revenue	—			60			4,592			56,509			—			61,161
Accrued interest	4,637			3,223			2,056			—			—			9,916
Accrued taxes	4,309			—			—			40,639			(23,148		)	21,800
Accrued salaries, wages and benefits	—			25,851			1,103			7,148			—			34,102
Self-insurance reserves	—			5,386			1,565			16,426			—			23,377
Current derivative liability	7,062			4,729			—			—			—			11,791
Other accrued liabilities	508			8,134			122			3,375			—			12,139
	369,034			251,278			42,129			395,420			(859,642		)	198,219
Deferred Tax Liability	—			—			49,695			127,645			(24,827		)	152,513
Derivative Liability	8,438			6,211			—			—			—			14,649
Other Liabilities	—			6,105			—			11,766			—			17,871
Long-Term Debt:
Term debt	346,969			247,890			13,991			—			—			608,850
Notes	294,897			205,103			450,000			—			—			950,000
	641,866			452,993			463,991			—			—			1,558,850
Equity	96,217			300,306			115,150			1,148,996			(1,564,452		)	96,217
	$	1,115,555		$	1,016,893		$	670,965		$	1,683,827		$	(2,448,921	)	$	2,038,319
CEDAR FAIR, L.P.
UNAUDITED CONDENSED CONSOLIDATING BALANCE SHEET
March 30, 2014
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
ASSETS
Current Assets:
Cash and cash equivalents	$	—		$	571		$	3,524		$	4,772		$	—		$	8,867
Receivables	59			96,547			76,669			530,662			(684,307		)	19,630
Inventories	—			3,794			2,841			31,629			—			38,264
Current deferred tax asset	—			22,409			800			3,444			—			26,653
Other current assets	325			10,578			5,589			15,891			(2,363		)	30,020
	384			133,899			89,423			586,398			(686,670		)	123,434
Property and Equipment (net)	455,780			8,110			240,175			829,897			—			1,533,962
Investment in Park	443,179			744,425			138,604			35,052			(1,361,260		)	—
Goodwill	9,061			—			113,249			111,218			—			233,528
Other Intangibles, net	—			—			16,037			22,883			—			38,920
Deferred Tax Asset	—			30,296			—			117			(30,413		)	—
Other Assets	12,213			22,179			6,087			2,912			—			43,391
	$	920,617		$	938,909		$	603,575		$	1,588,477		$	(2,078,343	)	$	1,973,235
LIABILITIES AND PARTNERS’ EQUITY
Current Liabilities:
Current maturities of long-term debt	$	827		$	590		$	33		$	—		$	—		$	1,450
Accounts payable	173,364			230,516			10,818			314,637			(684,307		)	45,028
Deferred revenue	—			85			4,048			66,015			—			70,148
Accrued interest	2,580			1,567			5,926			—			—			10,073
Accrued taxes	4,757			849			—			3,209			(2,363		)	6,452
Accrued salaries, wages and benefits	—			18,183			503			5,833			—			24,519
Self-insurance reserves	—			5,431			1,664			15,601			—			22,696
Other accrued liabilities	280			3,086			125			1,405			—			4,896
	181,808			260,307			23,117			406,700			(686,670		)	185,262
Deferred Tax Liability	—			—			56,045			131,649			(30,413		)	157,281
Derivative Liability	16,281			11,508			—			—			—			27,789
Other Liabilities	—			4,358			—			3,397			—			7,755
Long-Term Debt:
Revolving credit loans	55,000			—			—			—			—			55,000
Term debt	351,840			251,371			14,189			—			—			617,400
Notes	294,897			205,103			401,957			—			—			901,957
	701,737			456,474			416,146			—			—			1,574,357
Equity	20,791			206,262			108,267			1,046,731			(1,361,260		)	20,791
	$	920,617		$	938,909		$	603,575		$	1,588,477		$	(2,078,343	)	$	1,973,235
Condensed Consolidating Statement of Operations and Other Comprehensive Income (Loss)	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
	For the Three Months Ended March 29, 2015
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	Net revenues	$	(1,383	)	$	4,020		$	78		$	46,737		$	(2,635	)	$	46,817
	Costs and expenses:
	Cost of food, merchandise, and games revenues	—			—			—			5,588			—			5,588
	Operating expenses	134			23,057			4,971			52,603			(2,635		)	78,130
	Selling, general and administrative	799			13,275			1,743			10,001			—			25,818
	Depreciation and amortization	—			9			—			4,002			—			4,011
	Loss on impairment / retirement of fixed assets, net	—			—			—			2,903			—			2,903
		933			36,341			6,714			75,097			(2,635		)	116,450
	Operating loss	(2,316		)	(32,321		)	(6,636		)	(28,360		)	—			(69,633		)
	Interest expense (income), net	7,836			6,837			6,120			(301		)	—			20,492
	Net effect of swaps	14			(130		)	—			—			—			(116		)
	Unrealized / realized foreign currency loss	—			—			38,218			—			—			38,218
	Other (income) expense	188			(4,816		)	1,046			3,582			—			—
	Loss from investment in affiliates	72,786			51,745			3,503			35,489			(163,523		)	—
	Income (loss) before taxes	(83,140		)	(85,957		)	(55,523		)	(67,130		)	163,523			(128,227		)
	Provision (benefit) for taxes	693			(13,172		)	(20,024		)	(11,891		)	—			(44,394		)
	Net loss	$	(83,833	)	$	(72,785	)	$	(35,499	)	$	(55,239	)	$	163,523		$	(83,833	)
	Other comprehensive income (loss), (net of tax):
	Cumulative foreign currency translation adjustment	7,214			—			7,214			—			(7,214		)	7,214
	Unrealized loss on cash flow hedging derivatives	(2,439		)	(777		)	—			—			777			(2,439		)
	Other comprehensive income (loss), (net of tax)	4,775			(777		)	7,214			—			(6,437		)	4,775
	Total Comprehensive loss	$	(79,058	)	$	(73,562	)	$	(28,285	)	$	(55,239	)	$	157,086		$	(79,058	)
	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
	For the Three Months Ended March 30, 2014
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	Net revenues	$	4,755		$	8,679		$	151		$	40,312		$	(13,431	)	$	40,466
	Costs and expenses:
	Cost of food, merchandise, and games revenues	—			—			1			4,984			—			4,985
	Operating expenses	1,348			22,462			6,937			63,034			(13,431		)	80,350
	Selling, general and administrative	1,396			16,672			873			2,463			—			21,404
	Depreciation and amortization	474			9			—			3,824			—			4,307
	Loss on impairment / retirement of fixed assets, net	249			—			—			748			—			997
		3,467			39,143			7,811			75,053			(13,431		)	112,043
	Operating income	1,288			(30,464		)	(7,660		)	(34,741		)	—			(71,577		)
	Interest expense, net	10,199			7,011			9,468			(2,019		)	—			24,659
	Net effect of swaps	194			177			—			—			—			371
	Unrealized / realized foreign currency loss	—			—			17,184			—			—			17,184
	Other (income) expense	187			(3,274		)	374			2,713			—			—
	(Income) loss from investment in affiliates	73,588			47,143			4,064			28,244			(153,039		)	—
	Income (loss) before taxes	(82,880		)	(81,521		)	(38,750		)	(63,679		)	153,039			(113,791		)
	Provision (benefit) for taxes	660			(10,422		)	(10,506		)	(9,983		)	—			(30,251		)
	Net income (loss)	$	(83,540	)	$	(71,099	)	$	(28,244	)	$	(53,696	)	$	153,039		$	(83,540	)
	Other comprehensive income (loss), (net of tax):
	Cumulative foreign currency translation adjustment	1,621			—			1,621			—			(1,621		)	1,621
	Unrealized income (loss) on cash flow hedging derivatives	(650		)	(173		)	—			—			173			(650		)
	Other comprehensive income (loss), (net of tax)	971			(173		)	1,621			—			(1,448		)	971
	Total Comprehensive Income (loss)	$	(82,569	)	$	(71,272	)	$	(26,623	)	$	(53,696	)	$	151,591		$	(82,569	)
Condensed Consolidating Statement of Cash Flows	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Three Months Ended March 29, 2015
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	NET CASH FROM (FOR) OPERATING ACTIVITIES	$	(17,967	)	$	(44,980	)	$	(6,910	)	$	10,174		$	(566	)	$	(60,249	)
	CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
	Intercompany receivables (payments) receipts	—			—			(10,594		)	46,961			(36,367		)	—
	Purchase of preferred equity investment	—			(2,000		)	—			—			—			(2,000		)
	Capital expenditures	—			—			(1,500		)	(58,230		)	—			(59,730		)
	Net cash for investing activities	—			(2,000		)	(12,094		)	(11,269		)	(36,367		)	(61,730		)
	CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
	Net borrowings on revolving credit loans	57,000			—			—			—			—			57,000
	Distributions paid	(42,618		)	—			—			—			566			(42,052		)
	Intercompany payables (payments) receipts	(76,415		)	47,897			(7,849		)	—			36,367			—
	Excess tax benefit from unit-based compensation expense	—			(1,299		)	—			—			—			(1,299		)
	Net cash from (for) financing activities	(62,033		)	46,598			(7,849		)	—			36,933			13,649
	EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(3,785		)	—			—			(3,785		)
	CASH AND CASH EQUIVALENTS
	Net decrease for the period	(80,000		)	(382		)	(30,638		)	(1,095		)	—			(112,115		)
	Balance, beginning of period	80,000			382			45,519			5,939			—			131,840
	Balance, end of period	$	—		$	—		$	14,881		$	4,844		$	—		$	19,725
	CEDAR FAIR, L.P.
	UNAUDITED CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Three Months Ended March 30, 2014
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	NET CASH FOR OPERATING	$	(6,307	)	$	(26,421	)	$	(27,243	)	$	(22,382	)	$	(903	)	$	(83,256	)
	ACTIVITIES
	CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
	Intercompany receivables (payments) receipts	—			(23,497		)	—			29,591			(6,094		)	—
	Capital expenditures	(16,379		)	(4		)	(5,077		)	(18,882		)	—			(40,342		)
	Net cash from (for) investing activities	(16,379		)	(23,501		)	(5,077		)	10,709			(6,094		)	(40,342		)
	CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
	Net borrowings on revolving credit loans	55,000			—			—			—			—			55,000
	Distributions/dividends (paid) received	(39,994		)	—			—			—			903			(39,091		)
	Intercompany payables (payments) receipts	(67,320		)	46,917			1,201			13,108			6,094			—
	Excess tax benefit from unit-based compensation expense	—			(568		)	—			—			—			(568		)
	Net cash from (for) financing activities	(52,314		)	46,349			1,201			13,108			6,997			15,341
	EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(932		)	—			—			(932		)
	CASH AND CASH EQUIVALENTS
	Net increase (decrease) for the period	(75,000		)	(3,573		)	(32,051		)	1,435			—			(109,189		)
	Balance, beginning of period	75,000			4,144			35,575			3,337			—			118,056
	Balance, end of period	$	—		$	571		$	3,524		$	4,772		$	—		$	8,867

Interim_Reporting_Details

Interim Reporting (Details)	3 Months Ended
	Mar. 29, 2015
Nature of Operations [Line Items]
Number of amusement parks owned and operated	11
Number of outdoor water parks owned and operated	3
Number of indoor water parks owned and operated	1
Number of hotels owned and operated	5
Minimum [Member]
Nature of Operations [Line Items]
Operating period	130 days
Maximum [Member]
Nature of Operations [Line Items]
Operating period	140 days

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets Goodwill (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Goodwill [Roll Forward]
Goodwill (gross), beginning of period	$308,159	$317,957
Accumulated Impairment Losses, beginning of period	-79,868	-79,868
Goodwill (net), beginning of period	228,291	238,089
Foreign currency translation	-8,408	-4,561
Goodwill (gross), end of period	299,751	313,396
Accumulated Impairment Losses, end of period	-79,868	-79,868
Goodwill (net), end of period	$219,883	$233,528

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets Other Intangible Assets (Details) (USD $)	Mar. 29, 2015	Dec. 31, 2014	Mar. 30, 2014
In Thousands, unless otherwise specified
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Carrying Amount/Value	$36,492	$37,683	$38,424
Accumulated Amortization	325	310	385
Total other intangible assets, gross carrying amount	37,308	38,501	39,305
Total other intangibe assets, net carrying value	36,983	38,191	38,920
License / Franchise Agreements [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	816	818	881
Accumulated Amortization	325	310	385
Net Carrying Value	$491	$508	$496

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2015	Jun. 03, 2014	Jul. 30, 2010	Mar. 31, 2013
Debt Instrument [Line Items]
Commitment fee on unused portion of credit facilities	0.38%
Notes Payable Due 2024 [Domain] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$450
Debt Instrument, Interest Rate, Stated Percentage		5.38%
Redemption percentage of original face amount	100.00%
Early call date, percentage of notes availabe for redemption	35.00%
Early call date, premium price, percentage	105.38%
Notes Payable, Due 2018 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Restricted payment	60
Notes Payable, Due 2018 [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			405
Debt Instrument, Interest Rate, Stated Percentage			9.13%
Notes Payable Due 2021 [Member] [Domain] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				500
Debt Instrument, Interest Rate, Stated Percentage				5.25%
Redemption percentage of original face amount	100.00%
Early call date, percentage of notes availabe for redemption	35.00%
Early call date, premium price, percentage	105.25%
Credit Agreement 2013 [Member] [Domain]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				885
Pro-forma consolidated leverage ratio	5
Total-Indebtedness-to-Consolidated-Cash-Flow Ratio requirement, period of measurement, annual	12 months
Total-Indebtedness-to-Consolidated-Cash-Flow Ratio requirement	5
Total-Indebtedness-to-Consolidated-Cash-Flow Ratio requirement, period of measurement, quarterly	3 months
Credit Agreement 2013 [Member] [Domain] | Maximum [Member]
Debt Instrument [Line Items]
Restricted payment	60
Credit Agreement 2013 [Member] [Domain] | Canadian Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	15
Credit Agreement 2013 [Member] [Domain] | Canadian Revolving Credit Facility Cad and USD [Domain]
Debt Instrument [Line Items]
Interest rate margin over LIBOR	2.25%
Credit Agreement 2013 [Member] [Domain] | Senior Secured Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				630
Debt Instrument, Periodic Payment	6.3
Interest rate margin over LIBOR	2.50%
Interest rate LIBOR floor	0.75%
Credit Agreement 2013 [Member] [Domain] | Senior Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				255
Original Issue Discount [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Unamortized discount			$5.60
Effective interest rate percentage			9.38%

Derivative_Financial_Instrumen2

Derivative Financial Instruments Schedule of Derivatives (Details) (USD $)	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Derivative [Line Items]
Net effect of swaps	$116,000	($371,000)
Debt instrument, LIBOR floor, decrease to percent	1.00%
Debt instrument, LIBOR floor, decrease from percent	1.50%
Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 12 [Member]
Derivative [Line Items]
Notional amount	200,000,000
Fixed interest rate	3.00%
Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 13 [Member]
Derivative [Line Items]
Notional amount	100,000,000
Fixed interest rate	3.00%
Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 14 [Member]
Derivative [Line Items]
Notional amount	100,000,000
Fixed interest rate	3.00%
Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 15 [Member]
Derivative [Line Items]
Notional amount	100,000,000
Fixed interest rate	2.70%
Interest Rate Swap [Member]
Derivative [Line Items]
Amortization of Deferred Hedge Gains	1,700,000	2,000,000
Cash Flow Hedging [Member] | Forward-Starting Interest Rate Swap [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	3,200,000
Cash Flow Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | 2013 forwards [Member]
Derivative [Line Items]
Average rate	2.94%
Derivative, amount of hedged item	500,000,000
Number of derivative instruments	4
Designated As Hedging [Member]
Derivative [Line Items]
Notional amount	500,000,000
Fixed interest rate	2.94%
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	0
Designated As Hedging [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	-4,602,000	-2,742,000
Not Designated As Hedging [Member]
Derivative [Line Items]
Notional amount	800,000,000
Average rate	2.38%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 1 [Member]
Derivative [Line Items]
Notional amount	200,000,000
Fixed interest rate	2.27%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 2 [Member]
Derivative [Line Items]
Notional amount	150,000,000
Fixed interest rate	2.43%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 3 [Member]
Derivative [Line Items]
Notional amount	75,000,000
Fixed interest rate	2.30%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 4 [Member]
Derivative [Line Items]
Notional amount	70,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 5 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 6 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 7 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.43%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 8 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.29%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 9 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.29%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 10 [Member]
Derivative [Line Items]
Notional amount	30,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] | Forward-Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 11 [Member]
Derivative [Line Items]
Notional amount	25,000,000
Fixed interest rate	2.30%
Credit Agreement 2013 [Member] [Domain] | Senior Secured Term Loan [Member]
Derivative [Line Items]
Interest rate LIBOR floor	0.75%
Interest Expense [Member] | Designated As Hedging [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	0
Net Effect of Swaps [Member] | Designated As Hedging [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Net Hedge Ineffectiveness Gain (Loss)	0	0
Net Effect of Swaps [Member] | Not Designated As Hedging [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$1,802,000	$1,617,000

Derivative_Financial_Instrumen3

Derivative Financial Instruments Balance Sheet Location (Details) (USD $)	Mar. 29, 2015	Dec. 31, 2014	Mar. 30, 2014
Derivatives, Fair Value [Line Items]
Derivative Liability	($19,252,000)	($14,649,000)	($27,789,000)
Derivative assets (liabilities), at fair value, net	-29,241,000	-26,440,000	-27,789,000
Derivative Liability, Current	9,989,000	11,791,000	0
Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	-19,252,000	-14,649,000	-6,657,000
Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	-9,989,000	-11,791,000	-21,132,000
Interest Rate Swap [Member] | Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability	-19,252,000	-14,649,000	-6,657,000
Interest Rate Swap [Member] | Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability			21,132,000
Derivative Liability, Current	9,989,000	11,791,000	0
Cash Flow Hedging [Member] | Forward-Starting Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$3,200,000

Derivative_Financial_Instrumen4

Derivative Financial Instruments Income Statement Location (Details) (USD $)	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Net effect of swaps	($116,000)	$371,000
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amortization of Deferred Hedge Gains	1,700,000	2,000,000
Designated As Hedging [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	-4,602,000	-2,742,000
Designated As Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	0
Designated As Hedging [Member] | Interest Rate Swap [Member] | Net Effect of Swaps [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Net Hedge Ineffectiveness Gain (Loss)	0	0
Not Designated As Hedging [Member] | Interest Rate Swap [Member] | Net Effect of Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in income	$1,802,000	$1,617,000

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Mar. 29, 2015		Dec. 31, 2014		Mar. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	($19,252,000)		($14,649,000)		($27,789,000)
Net derivative liability	-29,241,000		-26,440,000		-27,789,000
Increase in net derivative liability	900,000
Fair value of term debt	610,400,000		605,800,000		618,900,000
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-29,241,000		-26,440,000		-27,789,000
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	0		0		0
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-29,241,000		-26,440,000		-27,789,000
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	0		0		0
Designated As Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-19,252,000		-14,649,000		-6,657,000
Designated As Hedging [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	-19,252,000		-14,649,000		-6,657,000
Designated As Hedging [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	-19,252,000	[1]	-14,649,000	[1]	-6,657,000	[1]
Designated As Hedging [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0		0	[1]	0	[1]
Designated As Hedging [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	-19,252,000		-14,649,000	[1]	-6,657,000	[1]
Designated As Hedging [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0		0	[1]	0	[1]
Not Designated As Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-9,989,000		-11,791,000		-21,132,000
Not Designated As Hedging [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability					21,132,000
Not Designated As Hedging [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	-9,989,000	[2]	-11,791,000	[2]	-21,132,000	[2]
Not Designated As Hedging [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0	[2]			0	[2]
Not Designated As Hedging [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	-9,989,000	[2]			-21,132,000	[2]
Not Designated As Hedging [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0	[2]			0	[2]
Senior Unsecured Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of notes	$973,900,000		$952,400,000		$938,600,000
[1]	Designated as cash flow hedges and are included in bDerivative Liabilityb on the Unaudited Condensed Consolidated Balance Sheet
[2]	Not designated as cash flow hedges and are included in "Current Derivative Liability" on the Unaudited Condensed Consolidated Balance Sheet

Earnings_per_Unit_Details

Earnings per Unit (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Basic weighted average units outstanding	55,820	55,500
Effect of dilutive units:
Diluted weighted average units outstanding	55,820	55,500
Net income (loss) per limited partner unit - basic	($1.50)	($1.51)
Net income (loss) per limited partner unit - diluted	($1.50)	($1.51)

Income_and_Partnership_Taxes_U

Income and Partnership Taxes Unrecognized Tax Position (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2015
Income Tax Disclosure [Abstract]
Unrecognized tax benefit	$1.20

Changes_in_Accumulated_Other_C2

Changes in Accumulated Other Comprehensive Income by Component Changes in AOCI by Component (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	($10,630)	($15,008)
Other comprehensive income before reclassifications	3,313	-707
Amounts reclassified from accumulated other comprehensive income	1,462	1,678
Net current-period other comprehensive income	4,775	971
Balance, ending	-5,855	-14,037
Other Comprehensive income before reclassification tax effect	701	413
Foreign currency translation adjustment, tax	-4,147	-932
Provision (benefit) for taxes	44,394	30,251
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	-16,566	-15,013
Other comprehensive income before reclassifications	-3,901	-2,328
Amounts reclassified from accumulated other comprehensive income	1,462	1,678
Net current-period other comprehensive income	-2,439	-650
Balance, ending	-19,005	-15,663
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	5,936	5
Other comprehensive income before reclassifications	7,214	1,621
Amounts reclassified from accumulated other comprehensive income	0	0
Net current-period other comprehensive income	7,214	1,621
Balance, ending	13,150	1,626
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision (benefit) for taxes	($224)	($307)

Changes_in_Accumulated_Other_C3

Changes in Accumulated Other Comprehensive Income by Component Reclassifications Out of AOCI (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$116	($371)
Provision (benefit) for taxes	44,394	30,251
Net loss	-83,833	-83,540
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision (benefit) for taxes	-224	-307
Net loss	1,462	1,678
Interest Rate Contracts [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$1,686	$1,985

Consolidating_Financial_Inform2

Consolidating Financial Information of Guarantors and Issuers (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	($60,249)	($83,256)
Intercompany Receivable	0	0
Intercompany payable	0	0
Net Cash Provided by (Used in) Investing Activities	-61,730	-40,342
Net Cash Provided by (Used in) Financing Activities	13,649	15,341
Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-17,967	-6,307
Intercompany Receivable	0	0
Intercompany payable	76,415	67,320
Net Cash Provided by (Used in) Investing Activities	0	-16,379
Net Cash Provided by (Used in) Financing Activities	-62,033	-52,314
Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-44,980	-26,421
Intercompany Receivable	0	-23,497
Intercompany payable	-47,897	-46,917
Net Cash Provided by (Used in) Investing Activities	-2,000	-23,501
Net Cash Provided by (Used in) Financing Activities	46,598	46,349
Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-6,910	-27,243
Intercompany Receivable	-10,594	0
Intercompany payable	7,849	-1,201
Net Cash Provided by (Used in) Investing Activities	-12,094	-5,077
Net Cash Provided by (Used in) Financing Activities	-7,849	1,201
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	10,174	-22,382
Intercompany Receivable	46,961	29,591
Intercompany payable	0	-13,108
Net Cash Provided by (Used in) Investing Activities	-11,269	10,709
Net Cash Provided by (Used in) Financing Activities	0	13,108
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-566	-903
Intercompany Receivable	-36,367	-6,094
Intercompany payable	-36,367	-6,094
Net Cash Provided by (Used in) Investing Activities	-36,367	-6,094
Net Cash Provided by (Used in) Financing Activities	36,933	6,997
Scenario, Previously Reported [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-83,256
Net Cash Provided by (Used in) Investing Activities		-40,342
Net Cash Provided by (Used in) Financing Activities		15,341
Scenario, Previously Reported [Member] | Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-73,627
Net Cash Provided by (Used in) Investing Activities		-16,379
Net Cash Provided by (Used in) Financing Activities		15,006
Scenario, Previously Reported [Member] | Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-3,001
Net Cash Provided by (Used in) Investing Activities		-4
Net Cash Provided by (Used in) Financing Activities		-568
Scenario, Previously Reported [Member] | Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-26,042
Net Cash Provided by (Used in) Investing Activities		-5,077
Net Cash Provided by (Used in) Financing Activities		0
Scenario, Previously Reported [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		20,317
Net Cash Provided by (Used in) Investing Activities		-18,882
Net Cash Provided by (Used in) Financing Activities		0
Scenario, Previously Reported [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-903
Net Cash Provided by (Used in) Investing Activities		0
Net Cash Provided by (Used in) Financing Activities		903
Scenario, Adjustment [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany Receivable		0
Intercompany payable		0
Intercompany Receivable Investing		0
Intercompany Activity, Net, Financing Activities		0
Scenario, Adjustment [Member] | Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany Receivable		0
Intercompany payable		-67,320
Intercompany Receivable Investing		0
Intercompany Activity, Net, Financing Activities		-67,320
Scenario, Adjustment [Member] | Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany Receivable		23,497
Intercompany payable		46,917
Intercompany Receivable Investing		-23,497
Intercompany Activity, Net, Financing Activities		46,917
Scenario, Adjustment [Member] | Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany Receivable		0
Intercompany payable		1,201
Intercompany Receivable Investing		0
Intercompany Activity, Net, Financing Activities		1,201
Scenario, Adjustment [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany Receivable		-29,591
Intercompany payable		13,108
Intercompany Receivable Investing		29,591
Intercompany Activity, Net, Financing Activities		13,108
Scenario, Adjustment [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany Receivable		6,094
Intercompany payable		6,094
Intercompany Receivable Investing		-6,094
Intercompany Activity, Net, Financing Activities		6,094
Scenario, Actual [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-83,256
Net Cash Provided by (Used in) Investing Activities		-40,342
Net Cash Provided by (Used in) Financing Activities		15,341
Scenario, Actual [Member] | Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-6,307
Net Cash Provided by (Used in) Investing Activities		-16,379
Net Cash Provided by (Used in) Financing Activities		-52,314
Scenario, Actual [Member] | Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-26,421
Net Cash Provided by (Used in) Investing Activities		-23,501
Net Cash Provided by (Used in) Financing Activities		46,349
Scenario, Actual [Member] | Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-27,243
Net Cash Provided by (Used in) Investing Activities		-5,077
Net Cash Provided by (Used in) Financing Activities		1,201
Scenario, Actual [Member] | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-22,382
Net Cash Provided by (Used in) Investing Activities		10,709
Net Cash Provided by (Used in) Financing Activities		13,108
Scenario, Actual [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		-903
Net Cash Provided by (Used in) Investing Activities		-6,094
Net Cash Provided by (Used in) Financing Activities		$6,997
Senior Unsecured Notes [Member] | Notes Payable Due 2021 and 2024 [Member]
Condensed Financial Statements, Captions [Line Items]
Subsidiary Ownership Percentage Guaranteering Notes	100.00%
Subsidiary Guarantor Ownership Percentage	100.00%

Consolidating_Financial_Inform3

Consolidating Financial Information of Guarantors and Issuers Balance Sheet (Details) (USD $)	Mar. 29, 2015	Dec. 31, 2014	Mar. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current Assets:
Cash and cash equivalents	$19,725	$131,840	$8,867	$118,056
Receivables	24,125	27,395	19,630
Inventories	37,369	25,883	38,264
Current deferred tax asset	40,827	9,265	26,653
Other current assets	27,027	9,334	30,020
Total current assets	149,073	203,717	123,434
Property and equipment (net)	1,558,264	1,526,551	1,533,962
Investment In Park	0	0	0
Goodwill	219,883	228,291	233,528	238,089
Other intangibes, net	36,983	38,191	38,920
Deferred Tax Asset	0	0	0
Other Assets	41,698	41,569	43,391
Assets	2,005,901	2,038,319	1,973,235
Current Liabilities:
Current maturities of long-term debt	0	0	1,450
Accounts payable	38,265	23,933	45,028
Deferred revenue	92,664	61,161	70,148
Accrued interest	12,056	9,916	10,073
Accrued taxes	10,159	21,800	6,452
Accrued salaries, wages and benefits	26,111	34,102	24,519
Self-insurance reserves	22,785	23,377	22,696
Derivative Liability, Current	9,989	11,791	0
Other accrued liabilities	11,486	12,139	4,896
Total current liabilities	223,515	198,219	185,262
Deferred Tax Liability	153,125	152,513	157,281
Derivative Liability	19,252	14,649	27,789
Other Liabilities	15,351	17,871	7,755
Long-Term Debt:
Long-term Line of Credit, Noncurrent	57,000	0	55,000
Term debt	608,850	608,850	617,400
Notes	950,000	950,000	901,957
Total long-term debt	1,615,850	1,558,850	1,574,357
Equity	-21,192	96,217	20,791
Total Partners' Equity and Liabilities	2,005,901	2,038,319	1,973,235
Cedar Fair L.P. (Parent) [Member]
Current Assets:
Cash and cash equivalents	0	80,000	0	75,000
Receivables	1	8	59
Inventories	0	0	0
Current deferred tax asset	0	0	0
Other current assets	80	680	325
Total current assets	81	80,688	384
Property and equipment (net)	0	470,851	455,780
Investment In Park	622,008	544,340	443,179
Goodwill	674	9,061	9,061
Other intangibes, net	0	0	0
Deferred Tax Asset	0	0	0
Other Assets	5,470	10,615	12,213
Assets	628,233	1,115,555	920,617
Current Liabilities:
Current maturities of long-term debt	0		827
Accounts payable	276,100	352,518	173,364
Deferred revenue	0	0	0
Accrued interest	1,595	4,637	2,580
Accrued taxes	1,792	4,309	4,757
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0	0	0
Derivative Liability, Current	5,980	7,062
Other accrued liabilities	864	508	280
Total current liabilities	286,331	369,034	181,808
Deferred Tax Liability	0	0	0
Derivative Liability	11,197	8,438	16,281
Other Liabilities	0	0	0
Long-Term Debt:
Long-term Line of Credit, Noncurrent	57,000		55,000
Term debt	0	346,969	351,840
Notes	294,897	294,897	294,897
Total long-term debt	351,897	641,866	701,737
Equity	-21,192	96,217	20,791
Total Partners' Equity and Liabilities	628,233	1,115,555	920,617
Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Current Assets:
Cash and cash equivalents	0	382	571	4,144
Receivables	89,060	143,931	96,547
Inventories	152	2,074	3,794
Current deferred tax asset	36,111	4,547	22,409
Other current assets	369	2,079	10,578
Total current assets	125,692	153,013	133,899
Property and equipment (net)	5,621	5,630	8,110
Investment In Park	765,178	812,549	744,425
Goodwill	0	0	0
Other intangibes, net	0	0	0
Deferred Tax Asset	24,215	24,827	30,296
Other Assets	20,488	20,874	22,179
Assets	941,194	1,016,893	938,909
Current Liabilities:
Current maturities of long-term debt	0		590
Accounts payable	199,361	203,895	230,516
Deferred revenue	92	60	85
Accrued interest	1,526	3,223	1,567
Accrued taxes	503	0	849
Accrued salaries, wages and benefits	21,608	25,851	18,183
Self-insurance reserves	8,031	5,386	5,431
Derivative Liability, Current	4,009	4,729
Other accrued liabilities	3,365	8,134	3,086
Total current liabilities	238,495	251,278	260,307
Deferred Tax Liability	0	0	0
Derivative Liability	8,055	6,211	11,508
Other Liabilities	3,707	6,105	4,358
Long-Term Debt:
Long-term Line of Credit, Noncurrent	0		0
Term debt	247,890	247,890	251,371
Notes	205,103	205,103	205,103
Total long-term debt	452,993	452,993	456,474
Equity	237,944	300,306	206,262
Total Partners' Equity and Liabilities	941,194	1,016,893	938,909
Co-Issuer Subsidiary (Cedar Canada) [Member]
Current Assets:
Cash and cash equivalents	14,881	45,519	3,524	35,575
Receivables	115,830	85,838	76,669
Inventories	2,070	1,594	2,841
Current deferred tax asset	674	674	800
Other current assets	2,382	23,818	5,589
Total current assets	135,837	157,443	89,423
Property and equipment (net)	202,853	218,260	240,175
Investment In Park	160,401	163,904	138,604
Goodwill	99,603	108,012	113,249
Other intangibes, net	14,119	15,312	16,037
Deferred Tax Asset	0	0	0
Other Assets	7,223	8,034	6,087
Assets	620,036	670,965	603,575
Current Liabilities:
Current maturities of long-term debt	0		33
Accounts payable	2,424	32,691	10,818
Deferred revenue	6,077	4,592	4,048
Accrued interest	7,943	2,056	5,926
Accrued taxes	749	0	0
Accrued salaries, wages and benefits	771	1,103	503
Self-insurance reserves	1,413	1,565	1,664
Derivative Liability, Current	0	0
Other accrued liabilities	99	122	125
Total current liabilities	19,476	42,129	23,117
Deferred Tax Liability	49,695	49,695	56,045
Derivative Liability	0	0	0
Other Liabilities	0	0	0
Long-Term Debt:
Long-term Line of Credit, Noncurrent	0		0
Term debt	13,991	13,991	14,189
Notes	450,000	450,000	401,957
Total long-term debt	463,991	463,991	416,146
Equity	86,874	115,150	108,267
Total Partners' Equity and Liabilities	620,036	670,965	603,575
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	4,844	5,939	4,772	3,337
Receivables	546,424	634,112	530,662
Inventories	35,147	22,215	31,629
Current deferred tax asset	4,042	4,044	3,444
Other current assets	24,196	5,905	15,891
Total current assets	614,653	672,215	586,398
Property and equipment (net)	1,349,790	831,810	829,897
Investment In Park	11,776	43,659	35,052
Goodwill	119,606	111,218	111,218
Other intangibes, net	22,864	22,879	22,883
Deferred Tax Asset	0	0	117
Other Assets	8,517	2,046	2,912
Assets	2,127,206	1,683,827	1,588,477
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	287,570	271,323	314,637
Deferred revenue	86,495	56,509	66,015
Accrued interest	992	0	0
Accrued taxes	7,115	40,639	3,209
Accrued salaries, wages and benefits	3,732	7,148	5,833
Self-insurance reserves	13,341	16,426	15,601
Derivative Liability, Current	0	0
Other accrued liabilities	7,158	3,375	1,405
Total current liabilities	406,403	395,420	406,700
Deferred Tax Liability	127,645	127,645	131,649
Derivative Liability	0	0	0
Other Liabilities	11,644	11,766	3,397
Long-Term Debt:
Long-term Line of Credit, Noncurrent	0		0
Term debt	346,969	0	0
Notes	0	0	0
Total long-term debt	346,969	0	0
Equity	1,234,545	1,148,996	1,046,731
Total Partners' Equity and Liabilities	2,127,206	1,683,827	1,588,477
Eliminations [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Receivables	-727,190	-836,494	-684,307
Inventories	0	0	0
Current deferred tax asset	0	0	0
Other current assets	0	-23,148	-2,363
Total current assets	-727,190	-859,642	-686,670
Property and equipment (net)	0	0	0
Investment In Park	-1,559,363	-1,564,452	-1,361,260
Goodwill	0	0	0
Other intangibes, net	0	0	0
Deferred Tax Asset	-24,215	-24,827	-30,413
Other Assets	0	0	0
Assets	-2,310,768	-2,448,921	-2,078,343
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	-727,190	-836,494	-684,307
Deferred revenue	0	0	0
Accrued interest	0	0	0
Accrued taxes	0	-23,148	-2,363
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0	0	0
Derivative Liability, Current	0	0
Other accrued liabilities	0	0	0
Total current liabilities	-727,190	-859,642	-686,670
Deferred Tax Liability	-24,215	-24,827	-30,413
Derivative Liability	0	0	0
Other Liabilities	0	0	0
Long-Term Debt:
Long-term Line of Credit, Noncurrent	0		0
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	-1,559,363	-1,564,452	-1,361,260
Total Partners' Equity and Liabilities	($2,310,768)	($2,448,921)	($2,078,343)

Consolidating_Financial_Inform4

Consolidating Financial Information of Guarantors and Issuers Income Statement (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net revenues	$46,817	$40,466
Costs and expenses:
Cost of food, merchandise, and games revenues	5,588	4,985
Operating expenses	78,130	80,350
Selling, general and administrative	25,818	21,404
Depreciation and amortization	4,011	4,307
Loss on impairment / retirement of fixed assets, net	2,903	997
Total costs and expenses	116,450	112,043
Operating loss	-69,633	-71,577
Interest expense (income), net	20,492	24,659
Net effect of swaps	-116	371
Unrealized / realized foreign currency loss	38,218	17,184
Other (income) expense	0	0
Loss from investment in affiliates	0	0
Loss before taxes	-128,227	-113,791
Benefit for taxes	-44,394	-30,251
Net loss	-83,833	-83,540
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	7,214	1,621
Unrealized loss on cash flow hedging derivatives	-2,439	-650
Other comprehensive income (loss), (net of tax)	4,775	971
Total Comprehensive Income (Loss)	-79,058	-82,569
Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	-1,383	4,755
Costs and expenses:
Cost of food, merchandise, and games revenues	0	0
Operating expenses	134	1,348
Selling, general and administrative	799	1,396
Depreciation and amortization	0	474
Loss on impairment / retirement of fixed assets, net	0	249
Total costs and expenses	933	3,467
Operating loss	-2,316	1,288
Interest expense (income), net	7,836	10,199
Net effect of swaps	14	194
Unrealized / realized foreign currency loss	0	0
Other (income) expense	188	187
Loss from investment in affiliates	72,786	73,588
Loss before taxes	-83,140	-82,880
Benefit for taxes	693	660
Net loss	-83,833	-83,540
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	7,214	1,621
Unrealized loss on cash flow hedging derivatives	-2,439	-650
Other comprehensive income (loss), (net of tax)	4,775	971
Total Comprehensive Income (Loss)	-79,058	-82,569
Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	4,020	8,679
Costs and expenses:
Cost of food, merchandise, and games revenues	0	0
Operating expenses	23,057	22,462
Selling, general and administrative	13,275	16,672
Depreciation and amortization	9	9
Loss on impairment / retirement of fixed assets, net	0	0
Total costs and expenses	36,341	39,143
Operating loss	-32,321	-30,464
Interest expense (income), net	6,837	7,011
Net effect of swaps	-130	177
Unrealized / realized foreign currency loss	0	0
Other (income) expense	-4,816	-3,274
Loss from investment in affiliates	51,745	47,143
Loss before taxes	-85,957	-81,521
Benefit for taxes	-13,172	-10,422
Net loss	-72,785	-71,099
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	0	0
Unrealized loss on cash flow hedging derivatives	-777	-173
Other comprehensive income (loss), (net of tax)	-777	-173
Total Comprehensive Income (Loss)	-73,562	-71,272
Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	78	151
Costs and expenses:
Cost of food, merchandise, and games revenues	0	1
Operating expenses	4,971	6,937
Selling, general and administrative	1,743	873
Depreciation and amortization	0	0
Loss on impairment / retirement of fixed assets, net	0	0
Total costs and expenses	6,714	7,811
Operating loss	-6,636	-7,660
Interest expense (income), net	6,120	9,468
Net effect of swaps	0	0
Unrealized / realized foreign currency loss	38,218	17,184
Other (income) expense	1,046	374
Loss from investment in affiliates	3,503	4,064
Loss before taxes	-55,523	-38,750
Benefit for taxes	-20,024	-10,506
Net loss	-35,499	-28,244
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	7,214	1,621
Unrealized loss on cash flow hedging derivatives	0	0
Other comprehensive income (loss), (net of tax)	7,214	1,621
Total Comprehensive Income (Loss)	-28,285	-26,623
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	46,737	40,312
Costs and expenses:
Cost of food, merchandise, and games revenues	5,588	4,984
Operating expenses	52,603	63,034
Selling, general and administrative	10,001	2,463
Depreciation and amortization	4,002	3,824
Loss on impairment / retirement of fixed assets, net	2,903	748
Total costs and expenses	75,097	75,053
Operating loss	-28,360	-34,741
Interest expense (income), net	-301	-2,019
Net effect of swaps	0	0
Unrealized / realized foreign currency loss	0	0
Other (income) expense	3,582	2,713
Loss from investment in affiliates	35,489	28,244
Loss before taxes	-67,130	-63,679
Benefit for taxes	-11,891	-9,983
Net loss	-55,239	-53,696
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	0	0
Unrealized loss on cash flow hedging derivatives	0	0
Other comprehensive income (loss), (net of tax)	0	0
Total Comprehensive Income (Loss)	-55,239	-53,696
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	-2,635	-13,431
Costs and expenses:
Cost of food, merchandise, and games revenues	0	0
Operating expenses	-2,635	-13,431
Selling, general and administrative	0	0
Depreciation and amortization	0	0
Loss on impairment / retirement of fixed assets, net	0	0
Total costs and expenses	-2,635	-13,431
Operating loss	0	0
Interest expense (income), net	0	0
Net effect of swaps	0	0
Unrealized / realized foreign currency loss	0	0
Other (income) expense	0	0
Loss from investment in affiliates	-163,523	-153,039
Loss before taxes	163,523	153,039
Benefit for taxes	0	0
Net loss	163,523	153,039
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	-7,214	-1,621
Unrealized loss on cash flow hedging derivatives	777	173
Other comprehensive income (loss), (net of tax)	-6,437	-1,448
Total Comprehensive Income (Loss)	$157,086	$151,591

Consolidating_Financial_Inform5

Consolidating Financial Information of Guarantors and Issuers Cash Flows (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2015	Mar. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	($60,249)	($83,256)
CASH FLOWS FOR INVESTING ACTIVITIES
Intercompany Receivable	0	0
Proceeds from Sales of Assets, Investing Activities	2,000	0
Capital expenditures	-59,730	-40,342
Net cash for investing activities	-61,730	-40,342
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	57,000	55,000
Distributions paid to partners	-42,052	-39,091
Intercompany payable	0	0
Excess tax benefit from unit-based compensation expense	-1,299	-568
Net cash for financing activities	13,649	15,341
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-3,785	-932
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	-112,115	-109,189
Balance, beginning of period	131,840	118,056
Balance, end of period	19,725	8,867
Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-17,967	-6,307
CASH FLOWS FOR INVESTING ACTIVITIES
Intercompany Receivable	0	0
Proceeds from Sales of Assets, Investing Activities	0
Capital expenditures	0	-16,379
Net cash for investing activities	0	-16,379
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	57,000	55,000
Distributions paid to partners	-42,618	-39,994
Intercompany payable	-76,415	-67,320
Excess tax benefit from unit-based compensation expense	0	0
Net cash for financing activities	-62,033	-52,314
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	-80,000	-75,000
Balance, beginning of period	80,000	75,000
Balance, end of period	0	0
Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-44,980	-26,421
CASH FLOWS FOR INVESTING ACTIVITIES
Intercompany Receivable	0	-23,497
Proceeds from Sales of Assets, Investing Activities	2,000
Capital expenditures	0	-4
Net cash for investing activities	-2,000	-23,501
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	0	0
Distributions paid to partners	0	0
Intercompany payable	47,897	46,917
Excess tax benefit from unit-based compensation expense	-1,299	-568
Net cash for financing activities	46,598	46,349
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	-382	-3,573
Balance, beginning of period	382	4,144
Balance, end of period	0	571
Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-6,910	-27,243
CASH FLOWS FOR INVESTING ACTIVITIES
Intercompany Receivable	-10,594	0
Proceeds from Sales of Assets, Investing Activities	0
Capital expenditures	-1,500	-5,077
Net cash for investing activities	-12,094	-5,077
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	0	0
Distributions paid to partners	0	0
Intercompany payable	-7,849	1,201
Excess tax benefit from unit-based compensation expense	0	0
Net cash for financing activities	-7,849	1,201
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-3,785	-932
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	-30,638	-32,051
Balance, beginning of period	45,519	35,575
Balance, end of period	14,881	3,524
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	10,174	-22,382
CASH FLOWS FOR INVESTING ACTIVITIES
Intercompany Receivable	46,961	29,591
Proceeds from Sales of Assets, Investing Activities	0
Capital expenditures	-58,230	-18,882
Net cash for investing activities	-11,269	10,709
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	0	0
Distributions paid to partners	0	0
Intercompany payable	0	13,108
Excess tax benefit from unit-based compensation expense	0	0
Net cash for financing activities	0	13,108
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	-1,095	1,435
Balance, beginning of period	5,939	3,337
Balance, end of period	4,844	4,772
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	-566	-903
CASH FLOWS FOR INVESTING ACTIVITIES
Intercompany Receivable	-36,367	-6,094
Proceeds from Sales of Assets, Investing Activities	0
Capital expenditures	0	0
Net cash for investing activities	-36,367	-6,094
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (payments) on revolving credit loans	0	0
Distributions paid to partners	566	903
Intercompany payable	36,367	6,094
Excess tax benefit from unit-based compensation expense	0	0
Net cash for financing activities	36,933	6,997
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	0	0
Balance, beginning of period	0	0
Balance, end of period	$0	$0