Six Flags Entertainment (FUN) 10-K 26 Feb 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	12 Months Ended
Share data in Thousands, unless otherwise specified	Dec. 31, 2014	Feb. 13, 2015	Jun. 29, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
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, Unit Outstanding
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Public Float			$2,918,425,559

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Limited Partners' Capital Account, Units Outstanding	55,827,658		55,716,300
Current Assets:
Cash and cash equivalents	$131,840		$118,056
Receivables	27,395		21,333
Inventories	25,883		26,080
Current deferred tax asset	9,265		9,675
Other current assets	9,334		11,353
Total current assets	203,717		186,497
Property and Equipment:
Land	276,297		283,313
Land improvements	366,863		350,869
Buildings	599,907		584,659
Rides and equipment	1,535,705		1,494,112
Construction in progress	70,431		44,550
Total property and equipment, gross	2,849,203		2,757,503
Less accumulated depreciation	-1,322,652		-1,251,740
Total property and equipment, net	1,526,551		1,505,763
Goodwill	228,291		238,089
Other Intangibles, net	38,191		39,471
Other Assets	41,569		44,807
Assets	2,038,319		2,014,627
Current Liabilities:
Accounts payable	23,933		13,222
Deferred revenue	61,161		44,521
Accrued interest	9,916		23,201
Accrued taxes	21,800		19,481
Accrued salaries, wages and benefits	34,102		29,200
Self-insurance reserves	23,377		23,653
Derivative Liability, Current	11,791		0
Other accrued liabilities	12,139		5,521
Total current liabilities	198,219		158,799
Deferred Tax Liability	152,513		158,113
Derivative Liability	14,649		26,662
Other Liabilities	17,871		11,290
Long-Term Debt:
Revolving credit loans	0		0
Term debt	608,850		618,850
Notes payable	950,000		901,782
Long-term debt, noncurrent	1,558,850		1,520,632
Commitments and Contingencies (Note 10)
Partners' Equity:
Special L.P. interests	5,290		5,290
General partner	1		2
Limited partners, 55,828 and 55,716 units outstanding at December 31, 2014 and December 31, 2013, respectively	101,556		148,847
Accumulated Other Comprehensive Income (Loss), Net of Tax	-10,630	[1]	-15,008	[1]
Total partners' equity	96,217		139,131
Total Partners' Equity and Liabilities	$2,038,319		$2,014,627
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Net revenues:
Admissions	$661,455		$647,007		$612,069
Food, merchandise and games	365,528		356,105		342,214
Accommodations and other	132,622		131,460		114,171
Total net revenues	1,159,605		1,134,572		1,068,454
Costs and expenses:
Cost of food, merchandise and games revenues	95,208		91,772		95,048
Operating expenses	496,079		472,344		451,403
Selling, general and administrative	156,864		152,412		138,311
Depreciation and amortization	124,286		122,487		126,306
Loss on impairment / retirement of fixed assets, net	9,757		2,539		30,336
Gain on Sale of Other Assets	-921		-8,743		-6,625
Total costs and expenses	881,273		832,811		834,779
Operating income	278,332		301,761		233,675
Interest expense	96,286		103,071		110,619
Net effect of swaps	-2,062		6,883		-1,492
Loss on early debt extinguishment	29,261		34,573		0
Unrealized / realized foreign currency (gain) loss	40,873		28,941		-8,998
Other (income) expense	-126		-154		-68
Income (loss) before taxes	114,100		128,447		133,614
Provision (benefit) for taxes	9,885		20,243		31,757
Net income (loss)	104,215		108,204		101,857
Net income allocated to general partner	1		1		1
Net income (loss) allocated to limited partners	104,214		108,203		101,856
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	5,931		2,756		369
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	-1,553		10,736		139
Net current-period other comprehensive income	4,378	[1]	13,492	[1]	508
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$108,593		$121,696		$102,365
Basic earnings per limited partner unit:
Weighted average limited partner units outstanding	55,548		55,476		55,518
Net income (loss) per unit - basic	$1.88		$1.95		$1.83
Diluted earnings per limited partner unit:
Weighted average limited partner units outstanding	55,992		55,825		55,895
Net income (loss) per limited partner unit	$1.86		$1.94		$1.82
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM (FOR) OPERATING ACTIVITIES
Net income (loss)	$104,215	$108,204	$101,857
Adjustments to reconcile net income (loss) to net cash from (for) operating activities:
Depreciation and amortization	124,286	122,487	126,306
Non-cash equity based compensation expense	9,668	6,391	4,476
Loss on early extinguishment of debt	29,261	34,573	0
Loss on impairment / retirement of fixed assets, net	9,757	2,539	30,336
Gain on Sale of Other Assets	-921	-8,743	-6,625
Net effect of swaps	-2,062	6,883	-1,492
Amortization of debt issuance costs	4,602	6,130	10,417
Unrealized foreign currency (gain) loss on notes	39,088	27,786	-8,758
Deferred income taxes	-2,961	3,348	27,502
Excess Tax Benefit from Share-based Compensation, Operating Activities	-140	-855	-1,208
Change in operating assets and liabilities:
(Increase) decrease in receivables	-6,235	-6,257	-10,543
(Increase) decrease in inventories	46	1,535	5,251
(Increase) decrease in current assets	1,949	-317	3,923
(Increase) decrease in other assets	1,072	-1,737	-2,739
Increase (decrease) in accounts payable	884	174	170
Increase (decrease) in deferred revenue	16,965	5,491	9,804
Increase (decrease) in accrued interest	-12,554	8,714	-587
Increase (decrease) in accrued taxes	2,319	1,690	1,883
Increase (decrease) in accrued salaries and wages	4,998	4,440	-8,576
Increase (decrease) in self-insurance reserves	-133	-136	2,625
Increase in deferred revenue and other current liabilities	6,630	-386	-1,986
Increase (decrease) in other liabilities	6,369	2,503	3,897
Net cash from operating activities	337,103	324,457	285,933
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Sale of other assets	1,377	15,297	16,058
Capital expenditures	-166,719	-120,448	-96,232
Net cash from (for) investing activities	-165,342	-105,151	-80,174
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Term debt borrowings	0	630,000	0
Note borrowings	450,000	500,000	0
Derivative settlement	0	0	-50,450
Term debt payments, including early termination penalties	-10,000	-1,142,250	-25,000
Note payments, including early termination penalties	-426,148	0	0
Distributions paid to partners	-159,432	-143,457	-88,813
Payment of debt issuance costs	-9,795	-23,532	0
Exercise of limited partnership unit options	0	52	76
Excess tax benefit from unit-based compensation expense	140	855	1,208
Net cash (for) financing activities	-155,235	-178,332	-162,979
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-2,742	-1,748	526
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	13,784	39,226	43,306
Balance, beginning of period	118,056	78,830	35,524
Balance, end of period	131,840	118,056	78,830
SUPPLEMENTAL INFORMATION
Cash payments for interest expense	104,198	90,834	101,883
Interest capitalized	2,983	1,610	1,322
Cash payments for taxes, net of refunds	11,162	14,822	1,783
Capital Expenditures Incurred but Not yet Paid	$12,262	$4,099	$1,896

Consolidated_Statements_of_Par

Consolidated Statements of Partners' Equity (USD $)	Total	Limited Partners [Member]	General Partner [Member]	Special L.P. Interests [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Cumulative Foreign Currency Translation Adjustment [Member]	Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
In Thousands, except Per Share data, unless otherwise specified
Beginning balance, value at Dec. 31, 2011		$160,068	$0			($3,120)	($25,888)
Beginning balance, units at Dec. 31, 2011		55,346
Partnership distribution declared, per unit	$1.60
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Limited partnership unit options exercised, units		16
Partners Capital Account Units Forfeited		0
Issuance of limited partnership units as compensation		256
Net income (loss)	101,857	101,856	1
Partnership distribution declared (2014 - $2.85; 2013 - $2.58; 2012 - $1.60)		-88,813
Income recognized for limited partnership unit options		345
Limited partnership unit options exercised, value		76
Tax effect of units involved in option exercises and treasury unit transactions		1,208
Issuance of limited partnership units as compensation		2,920
Foreign currency translation adjustment, tax	-213
Unrealized loss on cash flow hedging derivatives, tax	-210
Current year activity, net of tax $288 in 2014, ($1,745) in 2013, ($210) in 2012 at Dec. 31, 2012	139						139
Ending balance, value at Dec. 31, 2012	154,451	177,660	1	5,290	-28,500	-2,751	-25,749
Current year activity, net of tax ($3,410) in 2014, ($1,586) in 2013, ($213) in 2012 at Dec. 31, 2012	369					369
Ending balance, units at Dec. 31, 2012		55,618
Partnership distribution declared, per unit	$2.58
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Limited partnership unit options exercised, units		6
Partners Capital Account Units Forfeited		-1
Issuance of limited partnership units as compensation		93
Net income (loss)	108,204	108,203	1
Partnership distribution declared (2014 - $2.85; 2013 - $2.58; 2012 - $1.60)		-143,457
Income recognized for limited partnership unit options		903
Limited partnership unit options exercised, value		52
Tax effect of units involved in option exercises and treasury unit transactions		855
Issuance of limited partnership units as compensation		4,631
Foreign currency translation adjustment, tax	-1,586
Unrealized loss on cash flow hedging derivatives, tax	-1,745
Current year activity, net of tax $288 in 2014, ($1,745) in 2013, ($210) in 2012 at Dec. 31, 2013	10,736						10,736
Ending balance, value at Dec. 31, 2013	139,131	148,847	2	5,290	-15,008	5	-15,013
Current year activity, net of tax ($3,410) in 2014, ($1,586) in 2013, ($213) in 2012 at Dec. 31, 2013	2,756					2,756
Ending balance, units at Dec. 31, 2013		55,716
Partnership distribution declared, per unit	$2.85
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Limited partnership unit options exercised, units		19
Partners Capital Account Units Forfeited		-2
Issuance of limited partnership units as compensation		95
Net income (loss)	104,215	104,214	1
Partnership distribution declared (2014 - $2.85; 2013 - $2.58; 2012 - $1.60)		-159,430
Income recognized for limited partnership unit options		890
Limited partnership unit options exercised, value		0
Tax effect of units involved in option exercises and treasury unit transactions		140
Issuance of limited partnership units as compensation		6,895
Foreign currency translation adjustment, tax	-3,410
Unrealized loss on cash flow hedging derivatives, tax	288
Current year activity, net of tax $288 in 2014, ($1,745) in 2013, ($210) in 2012 at Dec. 31, 2014	-1,553						-1,553
Ending balance, value at Dec. 31, 2014	96,217	101,556	1	5,290	-10,630	5,936	-16,566
Current year activity, net of tax ($3,410) in 2014, ($1,586) in 2013, ($213) in 2012 at Dec. 31, 2014	$5,931					$5,931
Ending balance, units at Dec. 31, 2014		55,828

Partnership_Organization

Partnership Organization	12 Months Ended
	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Partnership Organization	Partnership Organization:
	Cedar Fair, L.P. (together with its affiliated companies, the "Partnership") is a Delaware limited partnership that commenced operations in 1983 when it acquired Cedar Point, Inc., and became a publicly traded partnership in 1987. The Partnership's general partner is Cedar Fair Management, Inc., an Ohio corporation (the “General Partner”), whose shares are held by an Ohio trust. The General Partner owns a 0.001% interest in the Partnership's income, losses and cash distributions, except in defined circumstances, and has full responsibility for management of the Partnership. At December 31, 2014 there were 55,827,658 outstanding limited partnership units listed on The New York Stock Exchange, net of 1,234,325 units held in treasury. At December 31, 2013, there were 55,716,300 outstanding limited partnership units listed, net of 1,345,683 units held in treasury.
	The General Partner may, with the approval of a specified percentage of the limited partners, make additional capital contributions to the Partnership, but is only obligated to do so if the liabilities of the Partnership cannot otherwise be paid or there exists a negative balance in its capital account at the time of its withdrawal from the Partnership. The General Partner, in accordance with the terms of the Partnership Agreement, is required to make regular cash distributions on a quarterly basis of all the Partnership's available cash, as defined in the Partnership Agreement. In accordance with the Partnership agreement and restrictions within the Partnership's 2013 Credit Agreement, the General Partner paid $2.85 per limited partner unit in distributions, or approximately $159.4 million in aggregate, in 2014.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies:
	The following policies are used by the Partnership in its preparation of the accompanying consolidated financial statements.
	Principles of Consolidation    The consolidated financial statements include the accounts of the Partnership and its subsidiaries, all of which are wholly owned. Intercompany transactions and balances are eliminated in consolidation.
	Foreign Currency    The financial statements of the Partnership's Canadian subsidiary are measured using the Canadian dollar as its functional currency. Assets and liabilities are translated into U.S. dollars at current currency exchange rates, while income and expenses are translated at average monthly currency exchange rates. Translation gains and losses are included as components of accumulated other comprehensive loss in partners' equity.
	In 2014, the Partnership recognized a $40.9 million charge to earnings for unrealized/realized foreign currency losses, $39.1 million related to U.S.-dollar denominated debt held at its Canadian property. In 2013, the Partnership recognized a $28.9 million charge to earnings for unrealized/realized foreign currency losses, $27.8 million of which represented an unrealized foreign currency loss on the U.S.-dollar denominated notes held at its Canadian property. In 2012, the Partnership recognized a $9.0 million benefit to earnings for unrealized/realized foreign currency gain, $8.8 million of which represented an unrealized foreign currency gain on the U.S.-dollar denominated notes held at its Canadian property. All other transaction gains and losses included in the 2014, 2013 and 2012 consolidated statements of operations were not material.
	Segment Reporting Each of the Partnership's parks operates autonomously, and management reviews operating results, evaluates performance and makes operating decisions, including the allocation of resources, on a property-by-property basis. In addition to reviewing and evaluating performance of the business at the individual park level, the structure of the Partnership's management incentive compensation systems are centered around the operating results of each park as an integrated operating unit. Therefore, each park represents a separate operating segment of the Partnership's business. Although the Partnership manages its parks with a high degree of autonomy, each park offers and markets a similar collection of products and services to similar customers. In addition, the parks all have similar economic characteristics, in that they all show similar long-term growth trends in key industry metrics such as attendance, guest per capita spending, net revenue, operating costs and operating profit. Therefore, the Partnership operates within the single reportable segment of amusement/water parks with accompanying resort facilities.
	Estimates    The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during each period. Actual results could differ from those estimates.
	Cash and Cash Equivalents     The Partnership considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents.
	Inventories    The Partnership's inventories primarily consist of purchased products, such as merchandise and food, for sale to its customers. Inventories are stated at the lower of cost or market using the first-in, first-out (FIFO) or average cost methods of accounting at the park level.
	Property and Equipment    Property and equipment are recorded at cost. Expenditures made to maintain such assets in their original operating condition are expensed as incurred, and improvements and upgrades are generally capitalized. Depreciation is computed on a straight-line basis over the estimated useful lives of the assets. Depreciation expense totaled $124.3 million in 2014, $122.4 million in 2013, and $126.3 million in 2012. In 2014 and 2012, charges for the impairment of assets at Wildwater Kingdom of $2.4 million and $25.0 million were recorded in "Loss on impairment / retirement of fixed assets, net" on the consolidated statement of operations and comprehensive income and are discussed in detail in Note 3. In 2014, 2013, and 2012, the remaining amounts recorded for "Loss on impairment / retirement of fixed assets, net" related to the retirement of fixed assets during the normal course of business. In 2014, 2013, and 2012, three non-core assets were sold for gains of $0.9 million, $8.7 million, and $6.6 million which were recorded in "Gain on sale of other assets" on the consolidated statement of operations and comprehensive income.
	The estimated useful lives of the assets are as follows:
	Land improvements	Approximately		25 years
	Buildings	25 years	-	40 years
	Rides	Approximately		20 years
	Equipment	3 years	-	10 years
	Impairment of Long-Lived Assets    Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 360 “Property, Plant, and Equipment” requires that long-lived assets be 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. An impairment loss may be recognized when estimated undiscounted future cash flows expected to result from the use of the asset, including disposition, are less than the carrying value of the asset. The measurement of the impairment loss to be recognized is based on the difference between the fair value and the carrying amounts of the assets. Fair value is generally determined based on a discounted cash flow analysis. 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.
	Goodwill     FASB ASC 350 “Intangibles - Goodwill and Other” requires that goodwill be tested for impairment. An impairment charge would be recognized for the amount, if any, by which the carrying amount of goodwill exceeds its implied fair value. The fair value of a reporting unit and the related implied fair value of its respective goodwill are established using a combination of an income (discounted cash flow) approach and market approach. Goodwill is reviewed annually for impairment, or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. All of the Partnership's goodwill is allocated to its reporting units and goodwill impairment tests are performed at the reporting unit level. The Partnership performed its annual goodwill impairment tests as of December 31, 2014 and concluded there was no impairment of the carrying value of the goodwill.
	Other Intangible Assets    The Partnership's other intangible assets consist primarily of trade-names and license and franchise agreements. The Partnership assesses the indefinite-lived trade-names for impairment separately from goodwill. After considering the expected use of the trade-names and reviewing any legal, regulatory, contractual, obsolescence, demand, competitive or other economic factors that could limit the useful lives of the trade-names, in accordance with FASB ASC 350, the Partnership determined that the trade-names had indefinite lives. Pursuant to FASB ASC 350, indefinite-lived intangible assets are no longer amortized, but rather are reviewed, along with goodwill, annually for impairment or more frequently if impairment indicators arise. The Partnership's license and franchise agreements are amortized over the life of the agreement, generally ranging from five to twenty years.
	Self-Insurance Reserves     Reserves are recorded for the estimated amounts of guest and employee claims and expenses incurred each period that are not covered by insurance. Reserves are established for both identified claims and incurred but not reported (IBNR) claims. Such amounts are accrued for when claim amounts become probable and estimable. Reserves for identified claims are based upon the Partnership's own historical claims experience and third-party estimates of settlement costs. Reserves for IBNR claims, which are not material to our consolidated financial statements, are based upon the Partnership's own claims data history. All reserves are periodically reviewed for changes in facts and circumstances and adjustments are made as necessary. At December 31, 2014 and 2013 the accrued reserves totaled $23.4 million and $23.7 million, respectively.
	Derivative Financial Instruments    The Partnership is exposed to market risks, primarily resulting from changes in interest rates and currency exchange rates. To manage these risks, it may enter into derivative transactions pursuant to its overall financial risk management program. The Partnership does not use them for trading purposes.
	The Partnership accounts for the use of derivative financial instruments according to FASB ASC 815 “Derivatives and Hedging”. For derivative instruments that hedge the exposure of variability in short-term rates, designated as cash flow hedges, the effective portion of the change in fair value of the derivative instrument is reported as a component of “Other comprehensive income (loss)” and reclassified into earnings in the period during which the hedged transaction affects earnings. For the ineffective portion of a derivative, the change in fair value, if any, is reported in “Net effect of swaps” in earnings together with the changes in fair value of derivatives not designated as hedges. Derivative financial instruments used in hedging transactions are assessed both at inception and quarterly thereafter to ensure they are effective in offsetting changes in either the fair value or cash flows of the related underlying exposures.
	Revenue Recognition    Revenues on multi-use tickets are recognized over the estimated number of uses expected for each type of ticket, and are adjusted periodically during the season. Other revenues are recognized on a daily basis based on actual guest spending at our facilities, or over the park operating season in the case of certain marina revenues and certain sponsorship revenues. Revenues on multi-use tickets for the next operating season, are deferred in the year received and recognized as revenue in the following operating season.
	Admission revenues include amounts paid to gain admission into our parks, including parking fees. Revenues related to extra-charge attractions, including our premium benefit offerings, are included in Accommodations and other revenue.
	Advertising Costs    The Partnership expenses all costs associated with its advertising, promotion and marketing programs over each park's operating season, including certain costs incurred prior to the season that are amortized over the season. Advertising expense totaled $58.4 million in 2014, $57.8 million in 2013 and $55.4 million in 2012. Certain prepaid costs incurred through year-end for the following year's advertising programs are included in other current assets.
	Unit-Based Compensation    The Partnership accounts for unit-based compensation in accordance with FASB ASC 718 “Compensation - Stock Compensation” which requires measurement of compensation cost for all equity-based awards at fair value on the date of grant and recognition of compensation over the service period for awards expected to vest. The Partnership uses a binomial option-pricing model for all grant date estimations of fair value.
	Income Taxes    The Partnership's legal entity structure includes both partnerships and corporate subsidiaries. As a publicly traded partnership, the Partnership is subject to an entity-level tax (the "PTP tax"). Accordingly, the Partnership itself is not subject to corporate income taxes; rather, the Partnership's tax attributes (except those of the corporate subsidiaries) are included in the tax returns of its partners. The Partnership's corporate subsidiaries are subject to entity-level income taxes.
	Neither the Partnership's financial reporting income, nor the cash distributions to unitholders, can be used as a substitute for the detailed tax calculations that the Partnership must perform annually for its partners. Net income from the Partnership is not treated as “passive income” for federal income tax purposes. As a result, partners subject to the passive activity loss rules are not permitted to offset income from the Partnership with passive losses from other sources.
	The Partnership's corporate subsidiaries account for income taxes under the asset and liability method. Accordingly, deferred tax assets and liabilities are recognized for the future book and tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are determined using enacted tax rates expected to apply in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income at the time of enactment of such change in tax rates. Any interest or penalties due for payment of income taxes are included in the provision for income taxes. The Partnership's total provision for taxes includes PTP taxes owed (see Note 9).
	Earnings Per Unit    For purposes of calculating the basic and diluted earnings per limited partner unit, no adjustments have been made to the reported amounts of net income. The unit amounts used are as follows:
			2014		2013		2012
	(In thousands except per unit amounts)
	Basic weighted average units outstanding		55,548		55,476		55,518
	Effect of dilutive units:
	Deferred units (Note 7)		6		—		—
	Performance units (Note 7)		31		—		—
	Restricted units (Note 7)		195		103		37
	Unit options (Note 7)		123		59		6
	Phantom units (Note 7)		89		187		334
	Diluted weighted average units outstanding		55,992		55,825		55,895
	Net income per unit - basic		$	1.88	$	1.95	$	1.83
	Net income per unit - diluted		$	1.86	$	1.94	$	1.82
	Weighted average unit options of 0, 5,000, and 12,000 were excluded from the diluted earnings per unit calculation as they were anti-dilutive for 2014, 2013, and 2012, respectively.
	Accounting pronouncements
	In February 2013, the FASB issued ASU 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date,” which requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, as the sum of the following:
	•	The amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors.
	•	Any additional amount the reporting entity expects to pay on behalf of its co-obligors.
	The guidance in this Update also requires an entity to disclose the nature and amount of the obligation as other information about those obligations. The amendments in the Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The Partnership adopted this guidance in 2014 (see Note 13).
	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.

LongLived_Assets

Long-Lived Assets	12 Months Ended
	Dec. 31, 2014
Impairment or Disposal of Tangible Assets Disclosure [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 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 (discounted cash flows) approach, which 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. 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.
	At the end of the fourth quarter of 2014, the Partnership concluded based on current operating results and updated forecasts, that a review of the carrying value of operating long-lived assets at Wildwater Kingdom was warranted. After performing its review, the Partnership determined that the park's fixed assets were impaired by $2.4 million. A charge for this amount was recorded in "Loss on impairment / retirement of fixed assets, net" on the consolidated statement of operations and comprehensive income.
	There were no fixed assets that were impaired during 2013. At the end of the third quarter of 2012, the Partnership concluded based on 2012 operating results through the third quarter and updated forecasts, that a review of the carrying value of operating long-lived assets at Wildwater Kingdom was warranted. After performing its review, the Partnership determined that a portion of the park's fixed assets were impaired. Also, at the end of the third quarter of 2012, the Partnership concluded that market conditions had changed on the adjacent non-operating land of Wildwater Kingdom. After performing its review of the updated market value of the land, the Partnership determined the land was impaired. The Partnership recognized a total of $25.0 million of non-operating and operating fixed-asset impairment during the third quarter of 2012 which was recorded in "Loss on impairment / retirement of fixed assets, net" on the consolidated statement of operations and comprehensive income.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets:
	Goodwill and other indefinite-lived intangible assets, including trade-names, are reviewed for impairment annually, or more frequently if indicators of impairment exist. 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; the testing for recoverability of a significant asset group within a reporting unit; 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 goodwill impairment test involves a two-step process. The first step is a comparison of each reporting unit's fair value to its carrying value. The Partnership estimates fair value using both an income (discounted cash flows) and market approach. The income approach uses a reporting unit's projection of estimated operating results and cash flows that is discounted using a weighted-average cost of capital that reflects current market conditions. The projection uses 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, future estimates of capital expenditures and changes in future working capital requirements. A market approach estimates fair value by applying cash flow multiples to the reporting unit's operating performance. The multiples are derived from comparable publicly traded companies with similar operating and investment characteristics of the reporting units.
	If the carrying value of the reporting unit is higher than its fair value, there is an indication that impairment may exist 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 reporting unit goodwill to the carrying value of the goodwill in the same manner as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill is less than the recorded goodwill, an impairment charge is recorded for the difference.
	A relief-from-royalty model is used to determine whether the fair value of trade-names exceed their carrying amounts. The fair value of the trade-names is determined as the present value of fees avoided by owning the respective trade-name.
	A summary of changes in the Partnership's carrying value of goodwill is as follows:
						Accumulated
		Goodwill				Impairment				Goodwill
		(gross)				Losses				(net)
	($'s in thousands)
	Balance at December 31, 2012	$	326,089			$	(79,868	)		$	246,221
	Foreign currency exchange translation	(8,132		)		—				(8,132		)
	Balance at December 31, 2013	317,957				(79,868		)		238,089
	Foreign currency exchange translation	(9,798		)		—				(9,798		)
	Balance at December 31, 2014	$	308,159			$	(79,868	)		$	228,291
	The Partnership's other intangible assets consisted of the following at December 31, 2014 and 2013:
		Weighted
		Average			Gross								Net
		Amortization			Carrying				Accumulated				Carrying
		Period			Amount				Amortization				Value
		($'s in thousands)
	31-Dec-14
	Other intangible assets:
	Trade names	—			$	37,683			$	—			$	37,683
	License / franchise agreements	13.5 years			818				310				508
	Total other intangible assets	13.5 years			$	38,501			$	310			$	38,191
	31-Dec-13
	Other intangible assets:
	Trade names	—			$	39,070			$	—			$	39,070
	License / franchise agreements	14.7 years			800				399				401
	Total other intangible assets	14.7 years			$	39,870			$	399			$	39,471
	Amortization expense of other intangible assets for 2014, 2013, and 2012 was immaterial and is expected to be immaterial going forward.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt:
	Long-term debt at December 31, 2014 and 2013:
	($'s in thousands)		2014			2013
	Revolving credit facility (due 2018)		$	—		$	—
	Term debt (1)
	March 2013 U.S. term loan averaging 3.25% at 2013 (due 2013-2020)		608,850			618,850
	Notes
	June 2014 U.S. fixed rate note at 5.375% (due 2024)		450,000			—
	March 2013 U.S. fixed rate note at 5.25% (due 2021)		500,000			500,000
	July 2010 U.S. fixed rate note at 9.125% (due 2018)		—			401,782
			1,558,850			1,520,632
	Less: current portion		—			—
			$	1,558,850		$	1,520,632
	-1	These average interest rates do not reflect the effect of interest rate swap agreements entered into on variable-rate term debt (see Note 6).
	In July 2010, the Partnership issued $405 million of 9.125% senior unsecured notes, maturing in 2018, in a private placement, including $5.6 million of original issue discount to yield 9.375%. Concurrently with this offering, the Partnership entered into a new $1,435 million credit agreement (the 2010 Credit Agreement), which included a $1,175 million senior secured term loan facility and a $260 million senior secured revolving credit facility.
	In February 2011, the Partnership amended its 2010 Credit Agreement (as so amended, the “Amended 2010 Credit Agreement”) to extend the maturity date of the U.S. term loan portion of the credit facilities by one year. The extended U.S. term loan was scheduled to mature in December 2017 and bore interest at a rate of LIBOR plus 300 bps, with a LIBOR floor of 100 bps.
	In March 2013, the Partnership issued $500 million of 5.25% senior unsecured notes, maturing in 2021, in a private placement. Concurrently with this offering, the Partnership entered into a new $885 million credit agreement (as amended, the "2013 Credit Agreement"), which included a $630 million senior secured term loan facility and a $255 million senior secured revolving credit facility. The Partnership has historically used LIBOR as its rate for borrowings. The terms of the senior secured term loan facility include a maturity date of March 6, 2020 and an interest rate of LIBOR plus 250 bps with a LIBOR floor of 75 bps. The term loan amortizes at $6.3 million annually. During the fourth quarter of 2014, $10 million of term debt was prepaid, resulting in no amortizing amounts due until the third quarter of 2016. The net proceeds from the notes issued in March 2013 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.
	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% 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.
	Cedar Fair, L.P., Canada’s Wonderland Company ("Cedar Canada"), and Magnum Management Corporation ("Magnum") are the co-issuers of the notes and co-borrowers of the senior secured credit facilities. In December 2014, the Partnership amended its credit agreement in order to add Millennium Operations, LLC, a newly converted wholly-owned limited liability company, as a co-borrower in connection with the Partnership's on-going long term tax planning efforts. The amendment is effective beginning on January 1, 2015. Both the notes and senior secured credit facilities 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). There are no non-guarantor subsidiaries.
	Revolving Credit Loans    Terms of the 2013 Credit Agreement include a combined $255 million revolving credit facility. Under the 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 basis points (bps). The revolving credit facility, which matures in March 2018, also provides for the issuance of documentary and standby letters of credit. As of December 31, 2014, no borrowings under the revolving credit facility were outstanding and standby letters of credit totaled $16.3 million. After letters of credit, the Partnership had $238.7 million of available borrowings under its revolving credit facility as of December 31, 2014. The maximum outstanding balance during 2014 was $85.0 million under the revolving credit facility. 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.
	Term Debt    The credit facilities provided under the 2013 Credit Agreement include a $630 million U.S. term loan maturing in March 2020. As of December 31, 2014, the U.S. term loan bore interest at a rate of LIBOR plus 250 bps, with a LIBOR floor of 75 bps.
	At December 31, 2014, the scheduled annual maturities of term debt were as follows ($'s in thousands):
		2015			2016			2017		2018		2019		2020		Total
	U.S. Term loan maturing in 2020	$	—		$	2,475		$	6,300	$	6,300	$	6,300	$	587,475	$	608,850
	The fair value of the term debt at December 31, 2014, was approximately $605.8 million, based on borrowing rates available as of that date to the Partnership on long-term debt with similar terms and maturities. The fair value of the outstanding debt at December 31, 2013, was approximately $620.4 million, based on borrowing rates available to the Partnership on long-term debt with similar terms and maturities at December 31, 2013. These borrowing rates used to value the term debt as of December 31, 2014 and 2013, respectively, are considered Level 2 inputs in the fair value hierarchy. See Note 11 for further detail about fair value measurements.
	The Partnership may prepay some or all of its term debt maturing in 2020 without premium or penalty at any time.
	Notes    The notes issued by the Partnership in March 2013 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.
	The notes issued by the Partnership in June 2014 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.
	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.
	The fair value of the notes at December 31, 2014, was approximately $952.4 million based borrowing rates available to the Partnership as of that date on notes with similar terms and maturities. The fair value of the notes at December 31, 2013, was approximately $933.2 million, based on borrowing rates available to the Partnership as of that date on notes with similar terms and maturities. These borrowing rates used to value the March 2013 and June 2014 notes as of December 31, 2014 and 2013, respectively, are considered Level 2 inputs in the fair value hierarchy. See Note 11 for further detail about fair value measurements.
	Covenants     The 2013 Credit Agreement requires the Partnership to maintain specified financial ratios, which if breached for any reason could result in an event of default under the agreement. The most restrictive of these ratios is the Consolidated Leverage Ratio. This ratio was set at a maximum of 6.00x Consolidated Total Debt (excluding the revolving debt)-to-Consolidated EBITDA as of December 31, 2014 and at a maximum of 6.25x as of December 31, 2013. As of December 31, 2014 and 2013, the Partnership’s Consolidated Total Debt (excluding revolving debt)-to-Consolidated EBITDA (as defined) ratio was 3.61x and 3.59x, providing $171.5 million and $180.1 million of Consolidated EBITDA cushion on the Consolidated Leverage Ratios, respectively. The Partnership was in compliance with all other credit agreement covenants as of December 31, 2014 and 2013. The 2013 Credit Agreement allows restricted payments of up to $60 million annually so long as no default or event of default has occurred and is continuing and subject to 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 our pro-forma Consolidated Leverage Ratio be less than or equal to 5.00x.
	The indentures governing our notes also include annual restricted payment limitations and additional permitted payment formulas. We can make restricted payments of $60 million annually so long as no default or event of default has occurred and is continuing. Our ability to make additional restricted payments is permitted should our pro forma trailing-twelve-month Total Indebtedness-to-Consolidated-Cash-Flow ratio be less than or equal to 5.00x. As of December 31, 2014 and 2013, the Partnership’s Total Indebtedness-to-Consolidated-Cash-Flow (as defined) ratio was 3.65x and 3.65x, providing $116.0 million and $98.2 million of Consolidated Cash Flow cushion on the Consolidated-Cash-Flow ratios, respectively. The Partnership was in compliance with all other indenture agreement covenants as of December 31, 2014 and 2013.
	The Partnership's policy is to capitalize interest on major construction projects. In 2014, interest payments of $3.0 million were capitalized, as compared to interest of $1.6 million capitalized in 2013 and $1.3 million capitalized in 2012.

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2014
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 counterparty credit risk. Counterparty 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 December 31, 2014, 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%.
	The fair market value of our swap portfolio was a liability of $26.4 million and $26.7 million, at December 31, 2014 and December 31, 2013, respectively, and was recorded on the consolidated balance sheet as listed below.
	($'s in thousands):		Consolidated		Fair Value as of				Fair Value as of
			Balance Sheet Location		31-Dec-14				31-Dec-13
	Derivatives designated as hedging instruments:
	Interest rate swaps		Derivative Liability		$	(14,649	)		$	(3,916	)
	Total derivatives designated as hedging instruments:				(14,649		)		(3,916		)
	Derivatives not designated as hedging instruments:
	Interest rate swaps		Current Derivative Liability		(11,791		)		—
	Interest rate swaps		Derivative Liability		—				(22,746		)
	Total derivatives not designated as hedging instruments:				(11,791		)		(22,746		)
	Net derivative liability				$	(26,440	)		$	(26,662	)
	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 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 December 31, 2014 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 December 31, 2014, approximately $4.9 million of losses remain in accumulated comprehensive loss related to the effective cash flow hedge contracts prior to de-designation. We estimate that losses of $4.9 million will be reclassified to earnings within the next 12 months.
	The following table presents our interest rate swaps, along with their notional amounts and their fixed interest rates which compare to 30 day LIBOR of 0.17% at December 31, 2014.
		Interest Rate Swaps
	($'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 and Other Comprehensive Income (Loss):
	($'s in thousands):		Amount of Gain (Loss)								Amount and Location of (Loss)						Amount and Location of Gain  Recognized in Income on Derivative (Ineffective Portion)
			recognized in OCI  on								Reclassified from Accumulated OCI into Income
			Derivatives								(Effective Portion)
			(Effective Portion)
			Year ended 12/31/14				Year ended 12/31/13					Year ended 12/31/14		Year ended 12/31/13				Year ended 12/31/14		Year ended 12/31/13
	Interest rate swaps		$	(10,735	)		$	(1,650	)		Interest Expense	$	—	$	(2,797	)	Net effect of swaps	$	—	$	3,703
		($ in thousands):		Amount and Location of Gain (Loss) Recognized
				in Income on Derivatives
		Derivatives not designated as Cash Flow
		Hedging Relationships				Year ended 12/31/14				Year ended 12/31/13
		Interest rate swaps		Net effect of swaps		$	10,958			$	3,547
						$	10,958			$	3,547
	For 2014, the Partnership recognized $11.0 million in income for the gain on the derivatives not designated as cash flow hedges as noted in the table above, $7.9 million of expense representing the amortization of amounts in AOCI for the swaps and $1.0 million of expense related to the write off of OCI balances on our swaps. The net effect of these amounts resulted in a benefit to earnings for the year of $2.1 million recorded in “Net effect of swaps.”
	For 2013, the Partnership recognized $7.2 million of gain in income on the ineffective portion of both designated and not designated derivatives as noted in the table above, $6.3 million of expense representing the amortization of amounts in AOCI for the swaps and $7.8 million of expense related to the write off of OCI balances on our swaps. The net effect of these amounts resulted in a charge to earnings for the year of $6.9 million recorded in “Net effect of swaps.”

Partners_Equity

Partners' Equity	12 Months Ended
	Dec. 31, 2014
Partners' Capital Notes [Abstract]
Partners' Equity	Partners' Equity:
	Special L.P. Interests     In accordance with the Partnership Agreement, certain partners were allocated $5.3 million of 1987 and 1988 taxable income (without any related cash distributions) for which they received Special L.P. Interests. The Special L.P. Interests do not participate in cash distributions and have no voting rights. However, the holders of Special L.P. Interests will receive in the aggregate $5.3 million upon liquidation of the Partnership.
	Equity-Based Incentive Plan    The 2008 Omnibus Incentive Plan was approved by the Partnership's unitholders in May of 2008 allowing the award of up to 2.5 million unit options and other forms of equity as determined by the Compensation Committee of the Board of Directors as an element of compensation to senior management and other key employees. The 2008 Omnibus Plan provides an opportunity for officers, directors, and eligible persons to acquire an interest in the growth and performance of our units and provides employees annual and long-term incentive awards as determined by the Board of Directors. Under the 2008 Omnibus Plan, the Compensation Committee of the Board of Directors may grant unit options, unit appreciation rights, restricted units, performance awards, other unit awards, cash incentive awards and long-term incentive awards.
	Compensation Awards Settlable in Cash or Equity
	Phantom Units
	During 2014, no "phantom units" were awarded. Outstanding "phantom unit" awards generally vest over an approximate four thousand-year period and can be paid with cash, limited partnership units, or a combination of both, as determined by the Compensation Committee. The effect of outstanding "phantom unit” awards has been included in the diluted earnings per unit calculation, as a portion of the awards are expected to be settled in limited partnership units. Approximately $1.7 million, $5.0 million and $3.4 million in compensation expense related to liability “phantom unit” awards was recognized in 2014, 2013 and 2012, respectively. These amounts are included in “Selling, General and Administrative Expense” in the accompanying Consolidated Statements of Operations and Comprehensive Income.
	At December 31, 2014, the Partnership had 81,611 “phantom units” outstanding, 80,580 of which have been accrued for as a liability, at the December 31, 2014 closing price of $47.83 per unit. The aggregate market value of the accrued “phantom units” at year-end has been reflected on the Balance Sheet with the current portion recorded in "Accrued salaries, wages and benefits" and the long-term portion recorded in “Other Liabilities.” At December 31, 2014, the liability was all current and totaled $3.9 million. At December 31, 2013, the current and long-term portions were $4.9 million and $3.2 million, respectively. At December 31, 2014, unamortized compensation related to unvested "phantom unit" awards totaled approximately $0.7 million, which is expected to be amortized over a weighted average period of 0.1 years. The Partnership expects to settle 81,611 of these outstanding "phantom units" upon vesting during 2015.
	Performance Units
	During 2014, 88,544 "performance units” were awarded at a grant price of $54.10 per unit. The number of "performance units” issuable under these awards are contingently based upon certain performance targets over a three-year period and these awards can be paid with cash, limited partnership units, or a combination of both as determined by the Compensation Committee, after the end of the performance period. The effect of outstanding "performance unit” awards for which the performance condition has been met, has been included in the diluted earnings per unit calculation, as a portion of the awards are expected to be settled in limited partnership units. The effect of outstanding "performance unit” awards which the performance condition has not been met, has been excluded from the diluted earnings per unit calculation. Approximately $5.3 million, $3.6 million and $3.4 million in 2014, 2013 and 2012, respectively, were recorded in compensation expense related to these types of “performance units” and are included in “Selling, General and Administrative Expense” in the accompanying Consolidated Statements of Operations and Comprehensive Income.
	At December 31, 2014, the Partnership had 264,398 of these types of "performance units” outstanding, 168,844 of which have been accrued for as a liability, at the December 31, 2014 closing price of $47.83 per unit. The estimated aggregate market value of "performance units” contingently issuable under these types of awards at year-end has been reflected on the Balance Sheet, with the current portion being recorded in "Accrued salaries, wages and benefits" and the long-term portion in “Other Liabilities.” At December 31, 2014, the current and long-term portions were $3.6 million and $5.2 million, respectively. At December 31, 2013, the liability was all long-term and totaled $3.6 million. At December 31, 2014, unamortized compensation related to unvested "performance unit” awards of this type totaled approximately $7.5 million, which is expected to be amortized over a weighted average period of 1.6 years. The Partnership expects to settle 70,692 of these outstanding "performance units" upon vesting during 2015.
	Deferred Units
	During 2014, 9,588 "deferred units" were awarded at a grant price of $50.07. Compensation expense related to "deferred units" vest ratably over a 1-year period and the settlement of these units is deferred until the individual's service to the Partnership ends. The "deferred units" accumulate distribution-equivalents once fully vested, which will be paid when the restriction ends. The effect of outstanding "deferred unit” awards has been included in the diluted earnings per unit calculation, as a portion of the awards are expected to be settled in limited partnership units. Approximately $0.5 million in 2014 was recorded in compensation expense related to "deferred units" and is included in "Selling, General, and Administrative Expense" in the accompanying Consolidated Statement of Operations and Comprehensive Income. As of December 31, 2014, no distribution equivalents were accrued for "deferred unit" awards.
	At December 31, 2014, the Partnership had 9.588 "deferred units” outstanding and vested, at the December 31, 2014 closing price of $47.83 per unit. The estimated aggregate market value of the "deferred units” at year-end has been reflected as a liability on the Balance Sheet, with the current portion being recorded in "Accrued salaries, wages and benefits" and the long-term portion in “Other Liabilities.” At December 31, 2014, the market value of the current and long-term portions totaled $0.5 million. At December 31, 2014, there is no unamortized compensation related to unvested "deferred unit” awards. The Partnership does not expect to settle any of these outstanding "deferred units" during 2015.
	Compensation Awards Settlable in Equity
	Performance Units
	During 2014, 124,234 "performance units” were awarded at a grant price of $50.95 per unit. The number of "performance units” issuable under this award is contingently based upon certain performance targets over a three-year period and this award would be paid out in December of the following two years in limited partnership units and the forfeitable distribution equivalents would be paid in cash. The effect of outstanding "performance unit” awards for which the performance condition has been met, has been included in the diluted earnings per unit calculation. The effect of outstanding "performance unit” awards which the performance condition has not been meet, has been excluded from the diluted earnings per unit calculation. Approximately $1.4 million in 2014 was recorded in compensation expense related to “performance units” under this award and is included in “Selling, General and Administrative Expense” in the accompanying Consolidated Statements of Operations and Comprehensive Income.
	At December 31, 2014, the Partnership had 124,234 of these "performance units” outstanding, 27,953 of which have been accrued for within equity. At December 31, 2014, unamortized compensation related to these unvested "performance unit” awards totaled approximately $4.9 million, which is expected to be amortized over a weighted average period of 3.9 years. The Partnership does not expect to settle any of these outstanding "performance units" during 2015.
	Restricted Units
	During 2014, 66,550 "restricted units" were awarded at a weighted-average grant price of $53.77. Compensation expense related to restricted units vest ratably over a three-year period and the restrictions on these units lapse upon vesting. During the time of restriction, the units accumulate forfeitable distribution-equivalents, which, when the units are fully vested, will be paid in the form accrued. Approximately $3.7 million, $2.6 million, and $1.2 million in 2014, 2013, and 2012, respectively, were recorded in compensation expense related to "restricted units" and are included in "Selling, General, and Administrative Expense" in the accompanying Consolidated Statement of Operations and Comprehensive Income. As of December 31, 2014, the amount of forfeitable distribution equivalents accrued and recorded on the Balance Sheet in "Other Liabilities" was approximately $1.5 million.
	At December 31, 2014, the Partnership had 201,168 "restricted units" outstanding, 122,099 of which have been accrued for within equity. The intrinsic value of "restricted units" for which expense was accrued in 2014 was approximately $0.9 million. At December 31, 2014, unamortized compensation expense related to unvested "restricted unit" awards totaled approximately, $3.6 million, which is expected to be amortized over a weighted average period of 1.7 years. The Partnership expects to settle 157,157 of these outstanding "restricted units" upon vesting during 2015.
	Unit Options
	The Partnership's "Unit Options" are issued with an exercise price no less than the market closing price of the Partnership's units on the day before the date of grant. The "Unit Options" granted in 2013 and 2012 vest ratably over a three-year period and have a maximum term of ten years. As of December 31, 2014, the Partnership had 622,316 fixed-price "unit options" outstanding under the 2008 Omnibus Incentive Plan.
	No "unit options" were granted during 2014. During 2013, 413,248 unit options were granted at a fair value of $3.47.  The significant assumptions used in the Black Scholes model to determine the fair value of these "unit options" include the "unit option" exercise price equal to the grant price, the "unit options" have a maximum term of ten years, the expected volatility is 30.1%, the assumed risk-free interest rate is 1.88% and the units receive an annual distribution of $2.50 per unit. During 2012, 280,672 "unit options" were granted at a fair value of $4.92.  The significant assumptions used to determine the fair value of these "unit options" include the "unit option" exercise price equals the grant price, the "unit options" have a maximum term of ten years, the expected volatility is 37.2%, the assumed risk-free interest rate is 2.31% and the units receive an annual distribution of $1.60 per unit. Non-cash compensation expense relating to unit options in 2014, 2013, and 2012 totaled $0.9 million, $0.9 million, and $0.3 million, respectively.
	A summary of "unit option" activity in 2014 and 2013 is presented below:
				2014				2013
						Weighted Average				Weighted Average
				Unit Options		Exercise Price		Unit Options		Exercise Price
	Outstanding, beginning of year			684,822		$	33.97	294,022		$	29.45
	Granted			—		—		413,248		36.95
	Exercised			(49,656	)	32.93		(16,278	)	28.36
	Forfeited			(12,850	)	34.96		(6,170	)	32.93
	Outstanding, end of year			622,316		$	34.03	684,822		$	33.97
	Options exercisable, end of year			476,043		$	33.45	274,252		$	32.61
	Cash received from "unit option" exercises totaled approximately $0 in 2014, $52,000 in 2013 and $76,000 in 2012.
	The following table summarizes information about vested "unit options" outstanding at December 31, 2014:
	Vested Options Outstanding
	Type	Range of Exercise Prices						Unit Options			Weighted Average Remaining Contractual Life	Weighted Average Exercise Price
	Outstanding at year-end	$	29.53		—	$	36.95	476,043			7.7 years	$	33.45
	Aggregate intrinsic value ($'s in thousands)							$	6,843
	A summary of the status of the Partnership's nonvested "unit options" at December 31, 2014 is presented below:
				Unit Options		Weighted Average Exercise Price
	Nonvested, beginning of year			410,570		$	34.88
	Granted, net of forfeitures			—		—
	Vested			(201,791	)	34.6
	Exercised			(49,656	)	32.93
	Forfeited			(12,850	)	$	34.96
	Nonvested, end of year			146,273		$	35.92
	The total intrinsic value of "unit options" exercised during the years ended December 31, 2014, 2013 and 2012 were $1.0 million, $0.2 million, and $0.4 million, respectively.
	The Partnership had 146,273 unvested "unit options" at December 31, 2014. In addition, the Partnership had $0.5 million of unamortized compensation expense related to unvested "unit options" which is expected to be amortized over a weighted average period of 0.9 years.
	The Partnership has a policy of issuing limited partnership units from treasury to satisfy "unit option" exercises and expects its treasury unit balance to be sufficient for 2015, based on estimates of "unit option" exercises for that period.

Retirement_Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Retirement Plans	Retirement Plans:
	The Partnership has trusteed, noncontributory retirement plans for the majority of its full-time employees. Contributions are discretionary and amounts accrued were approximately $4.3 million in 2014, $4.4 million in 2013 and $3.9 million in 2012. Additionally, the Partnership has a trusteed, contributory retirement plan for the majority of its full-time employees. This plan permits employees to contribute specified percentages of their salary, matched up to a limit by the Partnership. Matching contributions, net of forfeitures, approximated $2.1 million in 2014, $1.9 million in 2013 and $1.7 million in 2012.
	In addition, approximately 219 employees are covered by union-sponsored, multi-employer pension plans for which approximately $1.5 million, $1.3 million and $1.3 million were contributed for the years ended December 31, 2014, 2013, and 2012, respectively. The Partnership has no plans to withdraw from any of the multi-employer plans.  The Partnership believes that the liability resulting from any such withdrawal, as defined by the Multi-employer Pension Plan Amendments Act of 1980, would not be material.

Income_and_Partnership_Taxes

Income and Partnership Taxes	12 Months Ended
	Dec. 31, 2014
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income and Partnership Taxes	Income and Partnership Taxes:
	Federal and state tax legislation in 1997 provided a permanent income tax exemption to existing publicly traded partnerships (PTP), such as Cedar Fair, L.P., with a PTP tax levied on partnership gross income (net revenues less cost of food, merchandise and games) beginning in 1998. In addition, 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. As such, the Partnership's "Provision for taxes" includes amounts for both the PTP tax and for income taxes on the Partnership's corporate subsidiaries.
	The Partnership's 2014 tax provision totals $9.9 million, which consists of an $9.6 million provision for the PTP tax and a $0.3 million provision for income taxes. This compares to the Partnership's 2013 tax provision of $20.2 million, which consisted of a $9.6 million provision for the PTP tax and a $10.6 million provision for income taxes, and the 2012 tax provision of $31.8 million, which consisted of a $8.7 million provision for the PTP tax and a $23.0 million provision for income taxes. The calculation of the provision for taxes involves significant estimates and assumptions and actual results could differ from those estimates.
	Significant components of income (loss) before taxes are as follows:
	($'s in thousands)	2014			2013			2012
	Domestic	$	186,389		$	159,256		$	113,132
	Foreign	(72,289		)	(30,809		)	20,482
		$	114,100		$	128,447		$	133,614
	The provision (benefit) for income taxes is comprised of the following:
	($'s in thousands)	2014			2013			2012
	Income taxes:
	Current federal	$	4,513		$	5,398		$	(1,081	)
	Current state and local	1,413			1,436			743
	Current foreign	(2,692		)	412			(4,152		)
	Total current	3,234			7,246			(4,490		)
	Deferred federal, state and local	9,239			9,989			9,237
	Deferred foreign	(12,200		)	(6,641		)	18,265
	Total deferred	(2,961		)	3,348			27,502
		$	273		$	10,594		$	23,012
	The provision (benefit) for income taxes for the Partnership's corporate subsidiaries differs from the amount computed by applying the U.S. federal statutory income tax rate of 35% to the Partnership's income (loss) before taxes.
	The sources and tax effects of the differences are as follows:
	($'s in thousands)	2014			2013			2012
	Income tax provision based on the U.S. federal statutory tax rate	$	39,935		$	44,956		$	46,765
	Partnership income not includible in corporate income	(39,922		)	(31,574		)	(21,273		)
	State and local taxes, net of federal income tax benefit	1,786			2,459			3,486
	Valuation allowance	(1,112		)	(4,460		)	(6,030		)
	Tax credits	(997		)	(1,303		)	(2,100		)
	Nondeductible expenses and other	583			516			2,164
		$	273		$	10,594		$	23,012
	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes.
	Significant components of deferred tax assets and liabilities as of December 31, 2014 and 2013 are as follows:
	($'s in thousands)	2014			2013
	Deferred tax assets:
	Options and deferred compensation	$	12,476		$	11,086
	Accrued expenses	7,380			6,369
	Foreign tax credits	16,844			24,300
	Tax attribute carryforwards	7,906			8,566
	Derivatives	3,044			4,377
	Foreign currency	2,645			—
	Deferred revenue	4,841			1,383
	Other	483			402
	Deferred tax assets	55,619			56,483
	Valuation allowance	(5,680		)	(6,792		)
	Net deferred tax assets	49,939			49,691
	Deferred tax liabilities:
	Property	(182,434		)	(190,175		)
	Intangibles	(10,753		)	(7,569		)
	Foreign currency	—			(385		)
	Deferred tax liabilities	(193,187		)	(198,129		)
	Net deferred tax liability	$	(143,248	)	$	(148,438	)
	The Partnership records a valuation allowance if, based on the weight of available evidence, it is more likely than not that some portion, or all, of a deferred tax asset will not be realized. Through December 31, 2013, the Partnership had recorded an $6.8 million valuation allowance related to a $24.3 million deferred tax asset for foreign tax credit carryforwards.  The need for this allowance was based on several factors including the ten-year carryforward period allowed for excess foreign tax credits, experience to date of foreign tax credit limitations, and management's long term estimates of domestic and foreign source income.
	During 2014, the Partnership reduced the valuation allowance recorded by $1.1 million related to $7.5 million of foreign tax credits utilized.  This compares to the reduction of the valuation allowance of $4.5 million and $6.0 million for the years ended December 31, 2013 and 2012, respectively. Further, the Partnership believes based on its update of long term estimates of domestic and foreign source income that no additional adjustments to the valuation allowance are warranted.  As of December 31, 2014, the Partnership had $16.8 million of deferred tax assets associated with the foreign tax credit carryforwards and a related $5.7 million valuation allowance.
	Additionally, as of December 31, 2014, the Partnership had $7.9 million of tax attribute carryforwards consisting of alternative minimum tax credits ($1.2 million), general business credits ($3.2 million) and the tax effect of state net operating loss carryforwards ($3.5 million). Alternative minimum tax credits do not expire. Unused general business credits will begin to expire in 2027. Unused state net operating loss carryforwards will expire from 2018 to 2028. The Partnership expects to fully realize these tax attribute carryforwards. As such, no valuation allowance has been recorded relating to these tax attribute carryforwards.
	The net current and non-current components of deferred taxes recognized as of December 31, 2014 and 2013 in the consolidated balance sheets are as follows:
	($'s in thousands)	2014			2013
	Net current deferred tax asset	$	9,265		$	9,675
	Net non-current deferred tax liability	(152,513		)	(158,113		)
	Net deferred tax liability	$	(143,248	)	$	(148,438	)
	The Partnership has recorded a deferred tax liability of $4.3 million and a deferred tax liability of $1.2 million as of December 31, 2014 and 2013, respectively, to account for the tax effect of derivatives and foreign currency translation adjustments included in Other Comprehensive Income.
	The Partnership has unrecognized income tax benefits as of December 31, 2014. The following is a reconciliation of beginning and ending unrecognized tax benefits:
		($'s in thousands)
	Balance at December 31, 2012	$	1,100
	Increase from 2013 tax positions	—
	Increase from 2012 tax positions	—
Decrease from settlements with taxing authority	—
Decrease from expiration of statute of limitations	—
Balance at December 31, 2013	1,100
Increase from 2014 tax positions	—
Increase from 2013 tax positions	100
Decrease from settlements with taxing authority	—
Decrease from expiration of statute of limitations	—
Balance at December 31, 2014	$	1,200
At December 31, 2014 a total of $1.2 million of unrecognized tax benefits was recorded for state and local income tax positions. There were $1.1 million of unrecognized tax positions during 2013 and $1.1 million unrecognized tax positions during 2012. If recognized, the tax benefits would decrease the Partnership taxes by $1.2 million.
The Partnership recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. Related to the unrecognized tax benefits noted, the Partnership accrued interest of $0.4 million and penalties of $0.2 million during 2014. The Partnership does not anticipate a significant change to the amount of unrecognized tax benefits over the next 12 months.
The Partnership and its corporate subsidiaries are subject to taxation in the U.S., Canada and various state and local jurisdictions. The tax returns of the Partnership are subject to examination by state and federal tax authorities. With few exceptions, the Partnership and its corporate subsidiaries are no longer subject to examination by the major taxing authorities for tax years before 2010.

Operating_Lease_Commitments_an

Operating Lease Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Operating Lease Commitments and Contingencies [Abstract]
Operating Lease Commitments and Contingencies	Operating Lease Commitments and Contingencies:
	Operating Lease Commitments
	The Partnership has commitments under various operating leases at its parks. Minimum lease payments under non-cancelable operating leases as of December 31, 2014 are as follows ($'s in thousands):
	2015	$	8,823
	2016	8,060
	2017	7,632
	2018	6,937
	2019	6,071
	Thereafter	107,043
		$	144,566
	The amount due after 2019 includes the land lease at California's Great America which is renewable in 2039. Lease expense, which includes short-term rentals for equipment and machinery, for 2014, 2013 and 2012 totaled $12.7 million, $12.7 million and $12.0 million, respectively.
	Contingencies
	The Partnership is also 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.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements:
	The FASB's ASC 820 "Fair Value Measurement" 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 820 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 liabilities measured at fair value as of December 31, 2014 and 2013 on a recurring basis:
	($'s in thousands)		Total			Level 1		Level 2			Level 3
	31-Dec-14
	Interest rate swap agreements (1)		$	(14,649	)	$	—	$	(14,649	)	$	—
	Interest rate swap agreements (2)		(11,791		)	—		(11,791		)	—
	Total		$	(26,440	)	$	—	$	(26,440	)	$	—
	31-Dec-13
	Interest rate swap agreements (1)		$	(3,916	)	$	—	$	(3,916	)	$	—
	Interest rate swap agreements (3)		(22,746		)	—		(22,746		)	—
	Total		$	(26,662	)	$	—	$	(26,662	)	$	—
	-1	Designated as hedging instruments and included in "Derivative Liability" on the Consolidated Balance Sheet
	-2	Not designated as hedging instruments and included in "Current Derivative Liability" on the Consolidated Balance Sheet
	-3	Not designated as hedging instruments and included in "Derivative Liability" on the Consolidated Balance Sheet
	Fair values of the interest rate swap agreements are determined using significant inputs, including the LIBOR, that 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 derivative liabilities by approximately $0.8 million as of December 31, 2014. The Partnership monitors the credit and non-performance risk associated with its derivative counter-parties and believes them to be insignificant and not warranting a credit adjustment at December 31, 2014.
	At the end of the fourth quarter of 2014, the Partnership concluded based on 2014 operating results and updated forecasts for the coming years, that a review of the carrying value of operating long-lived assets at Wildwater Kingdom was warranted. After performing its review, the Partnership determined that the park's fixed assets were impaired. Based on Level 3 unobservable valuation assumptions and other market inputs, the assets were marked to a fair value of $17.1 million, resulting in an impairment charge of $2.4 million for operating assets during the quarter. This amount was recorded in "Loss on impairment / retirement of fixed assets, net" on the consolidated statement of operations and comprehensive income.
	At the end of the third quarter in 2012, the Partnership concluded based on operating results, as well as updated forecasts, and changes in market conditions, that a review of the carrying value of long-lived assets at Wildwater Kingdom was warranted. After performing its review, the Partnership determined that a portion of the park's fixed assets were impaired. Based on Level 3 unobservable valuation assumptions and other market inputs, the assets were marked to a fair value of $19.8 million, resulting in an impairment charge of $25.0 million for operating and non-operating assets during the quarter. This amount was recorded in "Loss on impairment / retirement of fixed assets, net" on the consolidated statement of operations and comprehensive income.
	The carrying value of cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities approximates fair value because of the short maturity of these instruments.
	A relief-from-royalty model is used to determine whether the fair value of trade-names exceeds their carrying amount. The fair value of the trade-names is determined as the present value of fees avoided by owning the respective trade-name.

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income (Notes)	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income	Changes in Accumulated Other Comprehensive Income ("AOCI"):
	The following tables reflect the changes in AOCI related to limited partners' equity for the twelve-month period ended December 31, 2014:
		Changes in Accumulated Other Comprehensive Income by Component (1)
	($'s in thousands)
			Unrealized income				Foreign currency
			on cash flow hedges				translation adjustment				Total
	Balance at December 31, 2013		$	(15,013	)		$	5			$	(15,008	)
	Other comprehensive income before reclassifications, net of tax $1,630 and $(3,410)		(9,105		)		5,931				(3,174		)
	Amounts reclassified from accumulated other comprehensive income, net of tax ($1,341) (2)		7,552				—				7,552
	Net current-period other comprehensive income		(1,553		)		5,931				4,378
	31-Dec-14		$	(16,566	)		$	5,936			$	(10,630	)
	(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.
		Changes in Accumulated Other Comprehensive Income by Component (1)
	($'s in thousands)
			Unrealized income			Foreign currency
			on cash flow hedges			translation adjustment			Total
	Balance at December 31, 2012		(25,749	)		(2,751	)		(28,500	)
	Other comprehensive income before reclassifications, net of tax $405 and ($1,586)		(1,246	)		2,756			1,510
	Amounts reclassified from accumulated other comprehensive income, net of tax ($2,150) (2)		11,982			—			11,982
	Net current-period other comprehensive income		10,736			2,756			13,492
	31-Dec-13		(15,013	)		5			(15,008	)
	(1) All amounts are net of tax. Amounts in parentheses indicate debits.
	(2) See Reclassifications Out of Accumulated Other Comprehensive Income table below for reclassification details.
	Reclassifications Out of Accumulated Other Comprehensive Income (1)
	($' in thousands)
	Details about Accumulated Other Comprehensive Income Components		Amount Reclassified from Accumulated Other Comprehensive Income				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		12 Months ended 12/31/14				12 months ended 12/31/13
	Interest rate swaps		$	8,893			$	14,132			Net effect of swaps
			$	8,893			$	14,132			Total before tax
			(1,341		)		(2,150		)		Provision (benefit) for taxes
			$	7,552			$	11,982			Net of tax
	(1) Amounts in parentheses indicate gains.

Consolidating_Financial_Inform

Consolidating Financial Information of Guarantors and Issuers	12 Months Ended
	Dec. 31, 2014
Condensed Consolidated Financial Information [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 5.375% and 5.25% 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 December 31, 2014 and December 31, 2013 and for the years ended December 31, 2014, December 31, 2013, and December 31, 2012. In lieu of providing separate audited financial statements for the guarantor subsidiaries, the accompanying condensed consolidating financial statements have been included.
	The Partnership adopted ASU 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date" as of January 1, 2014. The debt disclosed on the consolidating balance sheets as of December 31, 2014 and December 31, 2013 reflect the adoption of this guidance. For the period ended December 31, 2013, the debt disclosed and related items have been adjusted to reflect only the amounts of debt Cedar Fair, L.P, Cedar Canada, and Magnum have recorded on their books.
	In addition to making the retrospective adjustments to the balance sheets related to the adoption of ASU 2013-04, the Condensed Consolidating Statements of Cash Flows for the years ended December 31, 2013 and December 31, 2012 have been revised to correct the presentation of certain intercompany transactions previously recorded as cash flows from operating activities and the presentation of an intercompany term debt receipt previously recorded as cash flows from financing activities. A summary of the changes are below:
	Condensed Consolidating Statements of Cash Flows
	For the Year Ended December 31, 2013
	(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	$	304,815		$	37,035		$	30,786		$	45,916		$	(94,095	)	$	324,457
	Investment in joint ventures and affiliates	(29,812		)	(24,552		)	(33,113		)	(6,618		)	94,095			—
	Intercompany receivables (payments) receipts	—			(44,023		)	—			55,136			(11,113		)	—
	Intercompany payables (payments) receipts	(112,553		)	54,236			3,117			44,087			11,113			—
	Dividends paid	—			—			13,173			—			(13,173		)	—
	As corrected - Net cash from (for) operating activities	$	162,450		$	22,696		$	13,963		$	138,521		$	(13,173	)	$	324,457
																	—
	As reported - Net cash from (for) investing activities	$	(86,066	)	$	(24,552	)	$	(42,836	)	$	(45,792	)	$	94,095		$	(105,151	)
	Investment in joint ventures and affiliates	29,812			24,552			33,113			6,618			(94,095		)	—
	Intercompany receivables (payments) receipts	—			44,023			—			(55,136		)	11,113			—
	As corrected - Net cash from (for) investing activities	$	(56,254	)	$	44,023		$	(9,723	)	$	(94,310	)	$	11,113		$	(105,151	)
																	—
	As reported - Net cash from (for) financing activities	$	(168,749	)	$	(8,783	)	$	(800	)	$	—		$	—		$	(178,332	)
	Dividends paid	—			—			(13,173		)	—			13,173			—
	Intercompany payables (payments) receipts	112,553			(54,236		)	(3,117		)	(44,087		)	(11,113		)	—
	As corrected - Net cash from (for) financing activities	$	(56,196	)	$	(63,019	)	$	(17,090	)	$	(44,087	)	$	2,060		$	(178,332	)
	Condensed Consolidating Statements of Cash Flows
	For the Year Ended December 31, 2012
	(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	$	130,043		$	30,996		$	21,256		$	143,489		$	(39,851	)	$	285,933
	Investment in joint ventures and affiliates	30,855			(56,099		)	2,172			(16,779		)	39,851			—
	Intercompany receivables (payments) receipts	—			57,817			—			63,524			(121,341		)	—
	Intercompany payables (payments) receipts	28,674			(108,688		)	16,500			(57,827		)	121,341			—
	As corrected - Net cash from (for) operating activities	$	189,572		$	(75,974	)	$	39,928		$	132,407		$	—		$	285,933
																	—
	As reported - Net cash from (for) investing activities	$	(1,636	)	$	(56,107	)	$	(12,379	)	$	(49,903	)	$	39,851		$	(80,174	)
	Investment in joint ventures and affiliates	(30,855		)	56,099			(2,172		)	16,779			(39,851		)	—
	Intercompany receivables (payments) receipts	—			(57,817		)	—			(63,524		)	121,341			—
	Intercompany debt receipts	—			93,845			—			—			(93,845		)	—
	Capital contribution	—			(60,000		)	—			—			60,000			—
	As corrected - Net cash from (for) investing activities	$	(32,491	)	$	(23,980	)	$	(14,551	)	$	(96,648	)	$	87,496		$	(80,174	)
	As reported - Net cash from (for) financing activities	$	(103,407	)	$	25,043		$	9,230		$	(93,845	)	$	—		$	(162,979	)
	Intercompany debt payments	—			(93,845		)	—			—			93,845			—
	Capital infusion	—			60,000			—			—			(60,000		)	—
	Intercompany payables (payments) receipts	(28,674		)	108,688			(16,500		)	57,827			(121,341		)	—
	As corrected - Net cash from (for) financing activities	$	(132,081	)	$	99,886		$	(7,270	)	$	(36,018	)	$	(87,496	)	$	(162,979	)
	These revisions had no effect on the Partnership's Condensed Consolidated Balance Sheets, Statements of Operations and Comprehensive Income, Statements of Partner's Equity, or Statements of Cash Flows.
	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING BALANCE SHEET
	DECEMBER 31, 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	$	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.
CONDENSED CONSOLIDATING BALANCE SHEET
31-Dec-13
(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	$	75,000		$	4,144		$	35,575		$	3,337		$	—		$	118,056
Receivables	6			115,972			67,829			552,633			(715,107		)	21,333
Inventories	—			1,968			1,898			22,214			—			26,080
Current deferred tax asset	—			5,430			800			3,445			—			9,675
Other current assets	599			4,443			14,266			7,764			(15,719		)	11,353
	75,605			131,957			120,368			589,393			(730,826		)	186,497
Property and Equipment, net	447,724			976			243,208			813,855			—			1,505,763
Investment in Park	514,948			796,735			142,668			63,948			(1,518,299		)	—
Goodwill	9,061			—			117,810			111,218			—			238,089
Other Intangibles, net	—			—			16,683			22,788			—			39,471
Deferred Tax Asset	—			31,122			—			117			(31,239		)	—
Other Assets	25,210			10,002			6,657			2,938			—			44,807
	$	1,072,548		$	970,792		$	647,394		$	1,604,257		$	(2,280,364	)	$	2,014,627
LIABILITIES AND PARTNERS’ EQUITY
Current Liabilities:
Accounts payable	$	259,850		$	188,818		$	17,632		$	262,029		$	(715,107	)	$	13,222
Deferred revenue	—			—			2,815			41,706			—			44,521
Accrued interest	4,637			3,223			15,341			—			—			23,201
Accrued taxes	4,609			—			—			30,591			(15,719		)	19,481
Accrued salaries, wages and benefits	—			21,596			1,101			6,503			—			29,200
Self-insurance reserves	—			5,757			1,742			16,154			—			23,653
Other accrued liabilities	1,146			2,993			181			1,201			—			5,521
	270,242			222,387			38,812			358,184			(730,826		)	158,799
Deferred Tax Liability	—			—			57,704			131,648			(31,239		)	158,113
Derivative Liability	15,610			11,052			—			—			—			26,662
Other Liabilities	—			7,858			—			3,432			—			11,290
Long-Term Debt:
Term debt	352,668			251,961			14,221			—						618,850
Notes	294,897			205,103			401,782			—						901,782
	647,565			457,064			416,003			—			—			1,520,632
Equity	139,131			272,431			134,875			1,110,993			(1,518,299		)	139,131
	$	1,072,548		$	970,792		$	647,394		$	1,604,257		$	(2,280,364	)	$	2,014,627
CEDAR FAIR, L.P.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Year Ended December 31, 2014
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
Net revenues	$	159,454		$	295,252		$	121,249		$	1,034,056		$	(450,406	)	$	1,159,605
Costs and expenses:
Cost of food, merchandise and games revenues	—			273			8,985			85,950			—			95,208
Operating expenses	5,371			195,899			47,013			698,202			(450,406		)	496,079
Selling, general and administrative	5,791			102,021			11,318			37,734			—			156,864
Depreciation and amortization	38,341			294			16,910			68,741			—			124,286
Loss on impairment / retirement of fixed assets, net	2,621			2,463			2,445			2,228			—			9,757
Gain on sale of other assets	—			—			—			(921		)	—			(921		)
	52,124			300,950			86,671			891,934			(450,406		)	881,273
Operating income (loss)	107,330			(5,698		)	34,578			142,122			—			278,332
Interest expense, net	42,440			28,718			34,249			(9,247		)	—			96,160
Net effect of swaps	(1,595		)	(467		)	—			—			—			(2,062		)
Loss on early debt extinguishment	—			—			29,261			—			—			29,261
Unrealized / realized foreign currency loss	—			—			40,873			—			—			40,873
Other (income) expense	750			(12,920		)	2,482			9,688			—			—
(Income) loss from investment in affiliates	(48,622		)	(12,899		)	(21,236		)	25,658			57,099			—
Income (loss) before taxes	114,357			(8,130		)	(51,051		)	116,023			(57,099		)	114,100
Provision (benefit) for taxes	10,142			(8,473		)	(25,396		)	33,612			—			9,885
Net income (loss)	$	104,215		$	343		$	(25,655	)	$	82,411		$	(57,099	)	$	104,215
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	5,931			—			5,931			—			(5,931		)	5,931
Unrealized income on cash flow hedging derivatives	(1,553		)	(66		)	—			—			66			(1,553		)
Other comprehensive income, (net of tax)	4,378			(66		)	5,931			—			(5,865		)	4,378
Total Comprehensive Income	$	108,593		$	277		$	(19,724	)	$	82,411		$	(62,964	)	$	108,593
CEDAR FAIR, L.P.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Year Ended December 31, 2013
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
Net revenues	$	152,469		$	296,077		$	127,692		$	1,006,469		$	(448,135	)	$	1,134,572
Costs and expenses:
Cost of food, merchandise and games revenues	—			—			9,322			82,450			—			91,772
Operating expenses	6,003			183,604			47,770			683,102			(448,135		)	472,344
Selling, general and administrative	5,717			100,825			10,984			34,886			—			152,412
Depreciation and amortization	36,807			37			17,333			68,310			—			122,487
Loss on impairment / retirement of fixed assets, net	424			—			479			1,636			—			2,539
Gain on sale of other assets	—			—			—			(8,743		)	—			(8,743		)
	48,951			284,466			85,888			861,641			(448,135		)	832,811
Operating income	103,518			11,611			41,804			144,828			—			301,761
Interest expense, net	42,630			28,875			39,376			(7,964		)	—			102,917
Net effect of swaps	4,190			2,693			—			—			—			6,883
Loss on early debt extinguishment	21,175			12,781			617			—			—			34,573
Unrealized / realized foreign currency gain	—			—			28,941			—			—			28,941
Other (income) expense	750			(11,257		)	3,679			6,828			—			—
(Income) loss from investment in affiliates	(83,557		)	(37,520		)	(17,438		)	2,477			136,038			—
Income (loss) before taxes	118,330			16,039			(13,371		)	143,487			(136,038		)	128,447
Provision (benefit) for taxes	10,126			(12,133		)	(10,856		)	33,106			—			20,243
Net income (loss)	$	108,204		$	28,172		$	(2,515	)	$	110,381		$	(136,038	)	$	108,204
Other comprehensive income, (net of tax):
Cumulative foreign currency translation adjustment	2,756			—			2,756			—			(2,756		)	2,756
Unrealized income on cash flow hedging derivatives	10,736			2,848			—			—			(2,848		)	10,736
Other comprehensive income, (net of tax)	13,492			2,848			2,756			—			(5,604		)	13,492
Total Comprehensive Income	$	121,696		$	31,020		$	241		$	110,381		$	(141,642	)	$	121,696
CEDAR FAIR, L.P.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Year Ended December 31, 2012
(In thousands)
	Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
Net revenues	$	145,715		$	258,136		$	140,418		$	927,668		$	(403,483	)	$	1,068,454
Costs and expenses:
Cost of food, merchandise and games revenues	—			—			10,316			84,732			—			95,048
Operating expenses	5,380			176,356			47,863			625,287			(403,483		)	451,403
Selling, general and administrative	6,495			86,615			11,135			34,066			—			138,311
Depreciation and amortization	37,660			40			18,199			70,407			—			126,306
Loss on impairment / retirement of fixed assets, net	25,997			—			6			4,333			—			30,336
Gain on sale of other assets	(862		)	—			—			(5,763		)	—			(6,625		)
	74,670			263,011			87,519			813,062			(403,483		)	834,779
Operating income (loss)	71,045			(4,875		)	52,899			114,606			—			233,675
Interest expense, net	48,524			29,328			40,870			(8,171		)	—			110,551
Net effect of swaps	(138		)	121			(1,475		)	—			—			(1,492		)
Unrealized / realized foreign currency gain	—			—			(8,998		)	—			—			(8,998		)
Other (income) expense	749			(9,507		)	2,020			6,738			—			—
(Income) loss from investment in affiliates	(90,022		)	(66,150		)	(14,597		)	(31,759		)	202,528			—
Income (loss) before taxes	111,932			41,333			35,079			147,798			(202,528		)	133,614
Provision (benefit) for taxes	10,075			(9,856		)	3,413			28,125			—			31,757
Net income (loss)	$	101,857		$	51,189		$	31,666		$	119,673		$	(202,528	)	$	101,857
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	369			—			369			—			(369		)	369
Unrealized income (loss) on cash flow hedging derivatives	139			114			21			—			(135		)	139
Other comprehensive income (loss), (net of tax)	508			114			390			—			(504		)	508
Total Comprehensive Income	$	102,365		$	51,303		$	32,056		$	119,673		$	(203,032	)	$	102,365
CEDAR FAIR, L.P.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Year Ended December 31, 2014
(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	$	138,669		$	12,384		$	9,772		$	180,251		$	(3,973	)	$	337,103
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Intercompany receivables (payments) receipts	—			13,794			—			(79,456		)	65,662			—
Sale of other assets	—			—			—			1,377			—			1,377
(Purchase) sale of subsidiary interest	(12,024		)	12,024			—			—			—			—
Capital expenditures	(64,837		)	(270		)	(16,072		)	(85,540		)	—			(166,719		)
Net cash for investing activities	(76,861		)	25,548			(16,072		)	(163,619		)	65,662			(165,342		)
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Note borrowings	—			—			450,000			—			—			450,000
Term debt payments, including early termination penalties	(5,698		)	(4,072		)	(230		)	—			—			(10,000		)
Note payments, including amounts paid for early termination	—			—			(426,148		)	—			—			(426,148		)
Intercompany payables (payments) receipts	110,763			(37,762		)	5,159			(14,030		)	(64,130		)	—
Distributions (paid) received	(161,873		)	—			—			—			2,441			(159,432		)
Payment of debt issuance costs	—			—			(9,795		)	—			—			(9,795		)
Excess tax benefit from unit-based compensation expense	—			140			—			—			—			140
Net cash (for) financing activities	(56,808		)	(41,694		)	18,986			(14,030		)	(61,689		)	(155,235		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(2,742		)	—			—			(2,742		)
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the year	5,000			(3,762		)	9,944			2,602			—			13,784
Balance, beginning of year	75,000			4,144			35,575			3,337			—			118,056
Balance, end of year	$	80,000		$	382		$	45,519		$	5,939		$	—		$	131,840
CEDAR FAIR, L.P.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Year Ended December 31, 2013
(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	$	162,450		$	22,696		$	13,963		$	138,521		$	(13,173	)	$	324,457
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Intercompany receivables (payments) receipts	—			44,023						(55,136		)	11,113			—
Sale of other assets	—			—			—			15,297			—			15,297
Capital expenditures	(56,254		)	—			(9,723		)	(54,471		)	—			(120,448		)
Net cash from (for) investing activities	(56,254		)	44,023			(9,723		)	(94,310		)	11,113			(105,151		)
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Term debt borrowings	359,022			256,500			14,478			—			—			630,000
Note borrowings	294,897			205,103			—			—			—			500,000
Intercompany payables (payments) receipts	112,553			(54,236		)	(3,117		)	(44,087		)	(11,113		)	—
Term debt payments, including early termination penalties	(661,180		)	(466,336		)	(14,734		)	—			—			(1,142,250		)
Distributions (paid) received	(146,953		)	3,496			(13,173		)	—			13,173			(143,457		)
Payment of debt issuance costs	(14,535		)	(8,453		)	(544		)	—			—			(23,532		)
Exercise of limited partnership unit options	—			52			—			—			—			52
Excess tax benefit from unit-based compensation expense	—			855			—			—			—			855
Net cash from (for) financing activities	(56,196		)	(63,019		)	(17,090		)	(44,087		)	2,060			(178,332		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(1,748		)	—			—			(1,748		)
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the year	50,000			3,700			(14,598		)	124			—			39,226
Balance, beginning of year	25,000			444			50,173			3,213			—			78,830
Balance, end of year	$	75,000		$	4,144		$	35,575		$	3,337		$	—		$	118,056
CEDAR FAIR, L.P.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Year Ended December 31, 2012
(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	$	189,572		$	(75,974	)	$	39,928		$	132,407		$	—		$	285,933
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Intercompany receivables payments	—			(57,817		)	—			(63,524		)	121,341			—
Intercompany debt receipts	—			93,845			—			—			(93,845		)	—
Capital contribution	—			(60,000		)	—			—			60,000			—
Sale of other assets	1,173			—			—			14,885			—			16,058
Capital expenditures	(33,664		)	(8		)	(14,551		)	(48,009		)	—			(96,232		)
Net cash from (for) investing activities	(32,491		)	(23,980		)	(14,551		)	(96,648		)	87,496			(80,174		)
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement	—			—			(50,450		)	—			—			(50,450		)
Term debt borrowings	—			—			—			—			—			—
Intercompany payable (payments) receipts	(28,674		)	108,688			(16,500		)	57,827			(121,341		)	—
Intercompany debt payments	—			—			—			(93,845		)	93,845			—
Term debt payments, including early termination penalties	(14,468		)	(10,212		)	(320		)	—			—			(25,000		)
Distributions (paid) received	(88,939		)	126			—			—			—			(88,813		)
Capital infusion	—			—			60,000			—			(60,000		)	—
Exercise of limited partnership unit options	—			76			—			—			—			76
Excess tax benefit from unit-based compensation expense	—			1,208			—			—			—			1,208
Net cash from (for) financing activities	(132,081		)	99,886			(7,270		)	(36,018		)	(87,496		)	(162,979		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			526			—			—			526
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the year	25,000			(68		)	18,633			(259		)	—			43,306
Balance, beginning of year	—			512			31,540			3,472			—			35,524
Balance, end of year	$	25,000		$	444		$	50,173		$	3,213		$	—		$	78,830

Summary_of_Significant_Account1

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation    The consolidated financial statements include the accounts of the Partnership and its subsidiaries, all of which are wholly owned. Intercompany transactions and balances are eliminated in consolidation.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency    The financial statements of the Partnership's Canadian subsidiary are measured using the Canadian dollar as its functional currency. Assets and liabilities are translated into U.S. dollars at current currency exchange rates, while income and expenses are translated at average monthly currency exchange rates. Translation gains and losses are included as components of accumulated other comprehensive loss in partners' equity.
	In 2014, the Partnership recognized a $40.9 million charge to earnings for unrealized/realized foreign currency losses, $39.1 million related to U.S.-dollar denominated debt held at its Canadian property. In 2013, the Partnership recognized a $28.9 million charge to earnings for unrealized/realized foreign currency losses, $27.8 million of which represented an unrealized foreign currency loss on the U.S.-dollar denominated notes held at its Canadian property. In 2012, the Partnership recognized a $9.0 million benefit to earnings for unrealized/realized foreign currency gain, $8.8 million of which represented an unrealized foreign currency gain on the U.S.-dollar denominated notes held at its Canadian property. All other transaction gains and losses included in the 2014, 2013 and 2012 consolidated statements of operations were not material.
Segment Reporting, Policy [Policy Text Block]	Segment Reporting Each of the Partnership's parks operates autonomously, and management reviews operating results, evaluates performance and makes operating decisions, including the allocation of resources, on a property-by-property basis. In addition to reviewing and evaluating performance of the business at the individual park level, the structure of the Partnership's management incentive compensation systems are centered around the operating results of each park as an integrated operating unit. Therefore, each park represents a separate operating segment of the Partnership's business. Although the Partnership manages its parks with a high degree of autonomy, each park offers and markets a similar collection of products and services to similar customers. In addition, the parks all have similar economic characteristics, in that they all show similar long-term growth trends in key industry metrics such as attendance, guest per capita spending, net revenue, operating costs and operating profit. Therefore, the Partnership operates within the single reportable segment of amusement/water parks with accompanying resort facilities.
Use of Estimates, Policy [Policy Text Block]	Estimates    The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during each period. Actual results could differ from those estimates.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents     The Partnership considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents.
Inventory, Policy [Policy Text Block]	Inventories    The Partnership's inventories primarily consist of purchased products, such as merchandise and food, for sale to its customers. Inventories are stated at the lower of cost or market using the first-in, first-out (FIFO) or average cost methods of accounting at the park level.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment    Property and equipment are recorded at cost. Expenditures made to maintain such assets in their original operating condition are expensed as incurred, and improvements and upgrades are generally capitalized. Depreciation is computed on a straight-line basis over the estimated useful lives of the assets. Depreciation expense totaled $124.3 million in 2014, $122.4 million in 2013, and $126.3 million in 2012. In 2014 and 2012, charges for the impairment of assets at Wildwater Kingdom of $2.4 million and $25.0 million were recorded in "Loss on impairment / retirement of fixed assets, net" on the consolidated statement of operations and comprehensive income and are discussed in detail in Note 3. In 2014, 2013, and 2012, the remaining amounts recorded for "Loss on impairment / retirement of fixed assets, net" related to the retirement of fixed assets during the normal course of business. In 2014, 2013, and 2012, three non-core assets were sold for gains of $0.9 million, $8.7 million, and $6.6 million which were recorded in "Gain on sale of other assets" on the consolidated statement of operations and comprehensive income.
	The estimated useful lives of the assets are as follows:
	Land improvements	Approximately		25 years
	Buildings	25 years	-	40 years
	Rides	Approximately		20 years
	Equipment	3 years	-	10 years
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of Long-Lived Assets    Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 360 “Property, Plant, and Equipment” requires that long-lived assets be 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. An impairment loss may be recognized when estimated undiscounted future cash flows expected to result from the use of the asset, including disposition, are less than the carrying value of the asset. The measurement of the impairment loss to be recognized is based on the difference between the fair value and the carrying amounts of the assets. Fair value is generally determined based on a discounted cash flow analysis. 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.
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill     FASB ASC 350 “Intangibles - Goodwill and Other” requires that goodwill be tested for impairment. An impairment charge would be recognized for the amount, if any, by which the carrying amount of goodwill exceeds its implied fair value. The fair value of a reporting unit and the related implied fair value of its respective goodwill are established using a combination of an income (discounted cash flow) approach and market approach. Goodwill is reviewed annually for impairment, or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. All of the Partnership's goodwill is allocated to its reporting units and goodwill impairment tests are performed at the reporting unit level. The Partnership performed its annual goodwill impairment tests as of December 31, 2014 and concluded there was no impairment of the carrying value of the goodwill.
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]	Other Intangible Assets    The Partnership's other intangible assets consist primarily of trade-names and license and franchise agreements. The Partnership assesses the indefinite-lived trade-names for impairment separately from goodwill. After considering the expected use of the trade-names and reviewing any legal, regulatory, contractual, obsolescence, demand, competitive or other economic factors that could limit the useful lives of the trade-names, in accordance with FASB ASC 350, the Partnership determined that the trade-names had indefinite lives. Pursuant to FASB ASC 350, indefinite-lived intangible assets are no longer amortized, but rather are reviewed, along with goodwill, annually for impairment or more frequently if impairment indicators arise. The Partnership's license and franchise agreements are amortized over the life of the agreement, generally ranging from five to twenty years.
Self Insurance Reserves [Policy Text Block]	Self-Insurance Reserves     Reserves are recorded for the estimated amounts of guest and employee claims and expenses incurred each period that are not covered by insurance. Reserves are established for both identified claims and incurred but not reported (IBNR) claims. Such amounts are accrued for when claim amounts become probable and estimable. Reserves for identified claims are based upon the Partnership's own historical claims experience and third-party estimates of settlement costs. Reserves for IBNR claims, which are not material to our consolidated financial statements, are based upon the Partnership's own claims data history. All reserves are periodically reviewed for changes in facts and circumstances and adjustments are made as necessary. At December 31, 2014 and 2013 the accrued reserves totaled $23.4 million and $23.7 million, respectively.
Derivatives, Policy [Policy Text Block]	Derivative Financial Instruments    The Partnership is exposed to market risks, primarily resulting from changes in interest rates and currency exchange rates. To manage these risks, it may enter into derivative transactions pursuant to its overall financial risk management program. The Partnership does not use them for trading purposes.
	The Partnership accounts for the use of derivative financial instruments according to FASB ASC 815 “Derivatives and Hedging”. For derivative instruments that hedge the exposure of variability in short-term rates, designated as cash flow hedges, the effective portion of the change in fair value of the derivative instrument is reported as a component of “Other comprehensive income (loss)” and reclassified into earnings in the period during which the hedged transaction affects earnings. For the ineffective portion of a derivative, the change in fair value, if any, is reported in “Net effect of swaps” in earnings together with the changes in fair value of derivatives not designated as hedges. Derivative financial instruments used in hedging transactions are assessed both at inception and quarterly thereafter to ensure they are effective in offsetting changes in either the fair value or cash flows of the related underlying exposures.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition
Advertising Costs, Policy [Policy Text Block]	Advertising Costs    The Partnership expenses all costs associated with its advertising, promotion and marketing programs over each park's operating season, including certain costs incurred prior to the season that are amortized over the season. Advertising expense totaled $58.4 million in 2014, $57.8 million in 2013 and $55.4 million in 2012. Certain prepaid costs incurred through year-end for the following year's advertising programs are included in other current assets.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Unit-Based Compensation    The Partnership accounts for unit-based compensation in accordance with FASB ASC 718 “Compensation - Stock Compensation” which requires measurement of compensation cost for all equity-based awards at fair value on the date of grant and recognition of compensation over the service period for awards expected to vest. The Partnership uses a binomial option-pricing model for all grant date estimations of fair value.
Income Tax, Policy [Policy Text Block]	Income Taxes    The Partnership's legal entity structure includes both partnerships and corporate subsidiaries. As a publicly traded partnership, the Partnership is subject to an entity-level tax (the "PTP tax"). Accordingly, the Partnership itself is not subject to corporate income taxes; rather, the Partnership's tax attributes (except those of the corporate subsidiaries) are included in the tax returns of its partners. The Partnership's corporate subsidiaries are subject to entity-level income taxes.
	Neither the Partnership's financial reporting income, nor the cash distributions to unitholders, can be used as a substitute for the detailed tax calculations that the Partnership must perform annually for its partners. Net income from the Partnership is not treated as “passive income” for federal income tax purposes. As a result, partners subject to the passive activity loss rules are not permitted to offset income from the Partnership with passive losses from other sources.
	The Partnership's corporate subsidiaries account for income taxes under the asset and liability method. Accordingly, deferred tax assets and liabilities are recognized for the future book and tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are determined using enacted tax rates expected to apply in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income at the time of enactment of such change in tax rates. Any interest or penalties due for payment of income taxes are included in the provision for income taxes. The Partnership's total provision for taxes includes PTP taxes owed (see Note 9).
Earnings Per Share, Policy [Policy Text Block]	Earnings Per Unit    For purposes of calculating the basic and diluted earnings per limited partner unit, no adjustments have been made to the reported amounts of net income. The unit amounts used are as follows:
			2014		2013		2012
	(In thousands except per unit amounts)
	Basic weighted average units outstanding		55,548		55,476		55,518
	Effect of dilutive units:
	Deferred units (Note 7)		6		—		—
	Performance units (Note 7)		31		—		—
	Restricted units (Note 7)		195		103		37
	Unit options (Note 7)		123		59		6
	Phantom units (Note 7)		89		187		334
	Diluted weighted average units outstanding		55,992		55,825		55,895
	Net income per unit - basic		$	1.88	$	1.95	$	1.83
	Net income per unit - diluted		$	1.86	$	1.94	$	1.82
	Weighted average unit options of 0, 5,000, and 12,000 were excluded from the diluted earnings per unit calculation as they were anti-dilutive for 2014, 2013, and 2012, respectively

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Property, Plant and Equipment. Weighted Average Useful Lives	The estimated useful lives of the assets are as follows:
	Land improvements	Approximately		25 years
	Buildings	25 years	-	40 years
	Rides	Approximately		20 years
	Equipment	3 years	-	10 years
Schedule of Weighted Average Number of Units	For purposes of calculating the basic and diluted earnings per limited partner unit, no adjustments have been made to the reported amounts of net income. The unit amounts used are as follows:
			2014		2013		2012
	(In thousands except per unit amounts)
	Basic weighted average units outstanding		55,548		55,476		55,518
	Effect of dilutive units:
	Deferred units (Note 7)		6		—		—
	Performance units (Note 7)		31		—		—
	Restricted units (Note 7)		195		103		37
	Unit options (Note 7)		123		59		6
	Phantom units (Note 7)		89		187		334
	Diluted weighted average units outstanding		55,992		55,825		55,895
	Net income per unit - basic		$	1.88	$	1.95	$	1.83
	Net income per unit - diluted		$	1.86	$	1.94	$	1.82

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
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 is as follows:
						Accumulated
		Goodwill				Impairment				Goodwill
		(gross)				Losses				(net)
	($'s in thousands)
	Balance at December 31, 2012	$	326,089			$	(79,868	)		$	246,221
	Foreign currency exchange translation	(8,132		)		—				(8,132		)
	Balance at December 31, 2013	317,957				(79,868		)		238,089
	Foreign currency exchange translation	(9,798		)		—				(9,798		)
	Balance at December 31, 2014	$	308,159			$	(79,868	)		$	228,291
Partnership's other intangible assets	The Partnership's other intangible assets consisted of the following at December 31, 2014 and 2013:
		Weighted
		Average			Gross								Net
		Amortization			Carrying				Accumulated				Carrying
		Period			Amount				Amortization				Value
		($'s in thousands)
	31-Dec-14
	Other intangible assets:
	Trade names	—			$	37,683			$	—			$	37,683
	License / franchise agreements	13.5 years			818				310				508
	Total other intangible assets	13.5 years			$	38,501			$	310			$	38,191
	31-Dec-13
	Other intangible assets:
	Trade names	—			$	39,070			$	—			$	39,070
	License / franchise agreements	14.7 years			800				399				401
	Total other intangible assets	14.7 years			$	39,870			$	399			$	39,471

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Long-term debt at December 31, 2014 and 2013:
	($'s in thousands)		2014			2013
	Revolving credit facility (due 2018)		$	—		$	—
	Term debt (1)
	March 2013 U.S. term loan averaging 3.25% at 2013 (due 2013-2020)		608,850			618,850
	Notes
	June 2014 U.S. fixed rate note at 5.375% (due 2024)		450,000			—
	March 2013 U.S. fixed rate note at 5.25% (due 2021)		500,000			500,000
	July 2010 U.S. fixed rate note at 9.125% (due 2018)		—			401,782
			1,558,850			1,520,632
	Less: current portion		—			—
			$	1,558,850		$	1,520,632
	-1	These average interest rates do not reflect the effect of interest rate swap agreements entered into on variable-rate term debt (see Note 6).
Schedule of Maturities of Long-term Debt	At December 31, 2014, the scheduled annual maturities of term debt were as follows ($'s in thousands):
		2015			2016			2017		2018		2019		2020		Total
	U.S. Term loan maturing in 2020	$	—		$	2,475		$	6,300	$	6,300	$	6,300	$	587,475	$	608,850

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative [Line Items]
Fair value of derivative instruments in Condensed Consolidated Balance Sheet
	($'s in thousands):		Consolidated		Fair Value as of				Fair Value as of
			Balance Sheet Location		31-Dec-14				31-Dec-13
	Derivatives designated as hedging instruments:
	Interest rate swaps		Derivative Liability		$	(14,649	)		$	(3,916	)
	Total derivatives designated as hedging instruments:				(14,649		)		(3,916		)
	Derivatives not designated as hedging instruments:
	Interest rate swaps		Current Derivative Liability		(11,791		)		—
	Interest rate swaps		Derivative Liability		—				(22,746		)
	Total derivatives not designated as hedging instruments:				(11,791		)		(22,746		)
	Net derivative liability				$	(26,440	)		$	(26,662	)
Effects of derivative instruments on income (loss) and other comprehensive income (loss)	Effects of Derivative Instruments on Income and Other Comprehensive Income (Loss):
	($'s in thousands):		Amount of Gain (Loss)								Amount and Location of (Loss)						Amount and Location of Gain  Recognized in Income on Derivative (Ineffective Portion)
			recognized in OCI  on								Reclassified from Accumulated OCI into Income
			Derivatives								(Effective Portion)
			(Effective Portion)
			Year ended 12/31/14				Year ended 12/31/13					Year ended 12/31/14		Year ended 12/31/13				Year ended 12/31/14		Year ended 12/31/13
	Interest rate swaps		$	(10,735	)		$	(1,650	)		Interest Expense	$	—	$	(2,797	)	Net effect of swaps	$	—	$	3,703
		($ in thousands):		Amount and Location of Gain (Loss) Recognized
				in Income on Derivatives
		Derivatives not designated as Cash Flow
		Hedging Relationships				Year ended 12/31/14				Year ended 12/31/13
		Interest rate swaps		Net effect of swaps		$	10,958			$	3,547
						$	10,958			$	3,547
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative instruments, notional amounts outstanding and interest rates	The following table presents our interest rate swaps, along with their notional amounts and their fixed interest rates which compare to 30 day LIBOR of 0.17% at December 31, 2014.
		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	%

Partners_Equity_Tables

Partners' Equity (Tables)	12 Months Ended
	Dec. 31, 2014
Partners' Capital Notes [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	A summary of "unit option" activity in 2014 and 2013 is presented below:
				2014				2013
						Weighted Average				Weighted Average
				Unit Options		Exercise Price		Unit Options		Exercise Price
	Outstanding, beginning of year			684,822		$	33.97	294,022		$	29.45
	Granted			—		—		413,248		36.95
	Exercised			(49,656	)	32.93		(16,278	)	28.36
	Forfeited			(12,850	)	34.96		(6,170	)	32.93
	Outstanding, end of year			622,316		$	34.03	684,822		$	33.97
	Options exercisable, end of year			476,043		$	33.45	274,252		$	32.61
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding	The following table summarizes information about vested "unit options" outstanding at December 31, 2014:
	Vested Options Outstanding
	Type	Range of Exercise Prices						Unit Options			Weighted Average Remaining Contractual Life	Weighted Average Exercise Price
	Outstanding at year-end	$	29.53		—	$	36.95	476,043			7.7 years	$	33.45
	Aggregate intrinsic value ($'s in thousands)							$	6,843
Schedule of Nonvested Share Activity [Table Text Block]	A summary of the status of the Partnership's nonvested "unit options" at December 31, 2014 is presented below:
				Unit Options		Weighted Average Exercise Price
	Nonvested, beginning of year			410,570		$	34.88
	Granted, net of forfeitures			—		—
	Vested			(201,791	)	34.6
	Exercised			(49,656	)	32.93
	Forfeited			(12,850	)	$	34.96
	Nonvested, end of year			146,273		$	35.92

Deferred_Tax_Assets_and_Liabil

Deferred Tax Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	Significant components of income (loss) before taxes are as follows:
	($'s in thousands)	2014			2013			2012
	Domestic	$	186,389		$	159,256		$	113,132
	Foreign	(72,289		)	(30,809		)	20,482
		$	114,100		$	128,447		$	133,614
Schedule of Components of Income Tax Expense (Benefit)	The provision (benefit) for income taxes is comprised of the following:
	($'s in thousands)	2014			2013			2012
	Income taxes:
	Current federal	$	4,513		$	5,398		$	(1,081	)
	Current state and local	1,413			1,436			743
	Current foreign	(2,692		)	412			(4,152		)
	Total current	3,234			7,246			(4,490		)
	Deferred federal, state and local	9,239			9,989			9,237
	Deferred foreign	(12,200		)	(6,641		)	18,265
	Total deferred	(2,961		)	3,348			27,502
		$	273		$	10,594		$	23,012
Schedule of Effective Income Tax Rate Reconciliation	The sources and tax effects of the differences are as follows:
	($'s in thousands)	2014			2013			2012
	Income tax provision based on the U.S. federal statutory tax rate	$	39,935		$	44,956		$	46,765
	Partnership income not includible in corporate income	(39,922		)	(31,574		)	(21,273		)
	State and local taxes, net of federal income tax benefit	1,786			2,459			3,486
	Valuation allowance	(1,112		)	(4,460		)	(6,030		)
	Tax credits	(997		)	(1,303		)	(2,100		)
	Nondeductible expenses and other	583			516			2,164
		$	273		$	10,594		$	23,012
Schedule of Deferred Tax Assets and Liabilities	Significant components of deferred tax assets and liabilities as of December 31, 2014 and 2013 are as follows:
	($'s in thousands)	2014			2013
	Deferred tax assets:
	Options and deferred compensation	$	12,476		$	11,086
	Accrued expenses	7,380			6,369
	Foreign tax credits	16,844			24,300
	Tax attribute carryforwards	7,906			8,566
	Derivatives	3,044			4,377
	Foreign currency	2,645			—
	Deferred revenue	4,841			1,383
	Other	483			402
	Deferred tax assets	55,619			56,483
	Valuation allowance	(5,680		)	(6,792		)
	Net deferred tax assets	49,939			49,691
	Deferred tax liabilities:
	Property	(182,434		)	(190,175		)
	Intangibles	(10,753		)	(7,569		)
	Foreign currency	—			(385		)
	Deferred tax liabilities	(193,187		)	(198,129		)
	Net deferred tax liability	$	(143,248	)	$	(148,438	)
Schedule of Net Current and Noncurrent Components of Deferred Taxes	The net current and non-current components of deferred taxes recognized as of December 31, 2014 and 2013 in the consolidated balance sheets are as follows:
	($'s in thousands)	2014			2013
	Net current deferred tax asset	$	9,265		$	9,675
	Net non-current deferred tax liability	(152,513		)	(158,113		)
	Net deferred tax liability	$	(143,248	)	$	(148,438	)
Summary of Income Tax Contingencies	The following is a reconciliation of beginning and ending unrecognized tax benefits:
		($'s in thousands)
	Balance at December 31, 2012	$	1,100
	Increase from 2013 tax positions	—
	Increase from 2012 tax positions	—
	Decrease from settlements with taxing authority	—
	Decrease from expiration of statute of limitations	—
	Balance at December 31, 2013	1,100
	Increase from 2014 tax positions	—
	Increase from 2013 tax positions	100
	Decrease from settlements with taxing authority	—
	Decrease from expiration of statute of limitations	—
	Balance at December 31, 2014	$	1,200

Operating_Lease_Commitments_an1

Operating Lease Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2014
Operating Lease Commitments and Contingencies [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Minimum lease payments under non-cancelable operating leases as of December 31, 2014 are as follows ($'s in thousands):
	2015	$	8,823
	2016	8,060
	2017	7,632
	2018	6,937
	2019	6,071
	Thereafter	107,043
		$	144,566

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Assets and liabilities measured at fair value on recurring basis	The table below presents the balances of liabilities measured at fair value as of December 31, 2014 and 2013 on a recurring basis:
	($'s in thousands)		Total			Level 1		Level 2			Level 3
	31-Dec-14
	Interest rate swap agreements (1)		$	(14,649	)	$	—	$	(14,649	)	$	—
	Interest rate swap agreements (2)		(11,791		)	—		(11,791		)	—
	Total		$	(26,440	)	$	—	$	(26,440	)	$	—
	31-Dec-13
	Interest rate swap agreements (1)		$	(3,916	)	$	—	$	(3,916	)	$	—
	Interest rate swap agreements (3)		(22,746		)	—		(22,746		)	—
	Total		$	(26,662	)	$	—	$	(26,662	)	$	—
	-1	Designated as hedging instruments and included in "Derivative Liability" on the Consolidated Balance Sheet
	-2	Not designated as hedging instruments and included in "Current Derivative Liability" on the Consolidated Balance Sheet
	-3	Not designated as hedging instruments and included in "Derivative Liability" on the Consolidated Balance Sheet

Changes_in_Accumulated_Other_C1

Changes in Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)
		Changes in Accumulated Other Comprehensive Income by Component (1)
	($'s in thousands)
			Unrealized income			Foreign currency
			on cash flow hedges			translation adjustment			Total
	Balance at December 31, 2013		$	(15,013	)	$	5		$	(15,008	)
	Other comprehensive income before reclassifications, net of tax $1,630 and $(3,410)		(9,105		)	5,931			(3,174		)
	Amounts reclassified from accumulated other comprehensive income, net of tax ($1,341) (2)		7,552			—			7,552
	Net current-period other comprehensive income		(1,553		)	5,931			4,378
	31-Dec-14		$	(16,566	)	$	5,936		$	(10,630	)
	(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
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			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		12 Months ended 12/31/14			12 months ended 12/31/13
	Interest rate swaps		$	8,893		$	14,132		Net effect of swaps
			$	8,893		$	14,132		Total before tax
			(1,341		)	(2,150		)	Provision (benefit) for taxes
			$	7,552		$	11,982		Net of tax

Consolidating_Financial_Inform1

Consolidating Financial Information of Guarantors and Issuers (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Consolidated Financial Information [Abstract]
Condensed Cash Flow Statement Adjustments
	Condensed Consolidating Statements of Cash Flows
	For the Year Ended December 31, 2013
	(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	$	304,815		$	37,035		$	30,786		$	45,916		$	(94,095	)	$	324,457
	Investment in joint ventures and affiliates	(29,812		)	(24,552		)	(33,113		)	(6,618		)	94,095			—
	Intercompany receivables (payments) receipts	—			(44,023		)	—			55,136			(11,113		)	—
	Intercompany payables (payments) receipts	(112,553		)	54,236			3,117			44,087			11,113			—
	Dividends paid	—			—			13,173			—			(13,173		)	—
	As corrected - Net cash from (for) operating activities	$	162,450		$	22,696		$	13,963		$	138,521		$	(13,173	)	$	324,457
																	—
	As reported - Net cash from (for) investing activities	$	(86,066	)	$	(24,552	)	$	(42,836	)	$	(45,792	)	$	94,095		$	(105,151	)
	Investment in joint ventures and affiliates	29,812			24,552			33,113			6,618			(94,095		)	—
	Intercompany receivables (payments) receipts	—			44,023			—			(55,136		)	11,113			—
	As corrected - Net cash from (for) investing activities	$	(56,254	)	$	44,023		$	(9,723	)	$	(94,310	)	$	11,113		$	(105,151	)
																	—
	As reported - Net cash from (for) financing activities	$	(168,749	)	$	(8,783	)	$	(800	)	$	—		$	—		$	(178,332	)
	Dividends paid	—			—			(13,173		)	—			13,173			—
	Intercompany payables (payments) receipts	112,553			(54,236		)	(3,117		)	(44,087		)	(11,113		)	—
	As corrected - Net cash from (for) financing activities	$	(56,196	)	$	(63,019	)	$	(17,090	)	$	(44,087	)	$	2,060		$	(178,332	)
	Condensed Consolidating Statements of Cash Flows
	For the Year Ended December 31, 2012
	(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	$	130,043		$	30,996		$	21,256		$	143,489		$	(39,851	)	$	285,933
	Investment in joint ventures and affiliates	30,855			(56,099		)	2,172			(16,779		)	39,851			—
	Intercompany receivables (payments) receipts	—			57,817			—			63,524			(121,341		)	—
	Intercompany payables (payments) receipts	28,674			(108,688		)	16,500			(57,827		)	121,341			—
	As corrected - Net cash from (for) operating activities	$	189,572		$	(75,974	)	$	39,928		$	132,407		$	—		$	285,933
																	—
	As reported - Net cash from (for) investing activities	$	(1,636	)	$	(56,107	)	$	(12,379	)	$	(49,903	)	$	39,851		$	(80,174	)
	Investment in joint ventures and affiliates	(30,855		)	56,099			(2,172		)	16,779			(39,851		)	—
	Intercompany receivables (payments) receipts	—			(57,817		)	—			(63,524		)	121,341			—
	Intercompany debt receipts	—			93,845			—			—			(93,845		)	—
	Capital contribution	—			(60,000		)	—			—			60,000			—
	As corrected - Net cash from (for) investing activities	$	(32,491	)	$	(23,980	)	$	(14,551	)	$	(96,648	)	$	87,496		$	(80,174	)
	As reported - Net cash from (for) financing activities	$	(103,407	)	$	25,043		$	9,230		$	(93,845	)	$	—		$	(162,979	)
	Intercompany debt payments	—			(93,845		)	—			—			93,845			—
	Capital infusion	—			60,000			—			—			(60,000		)	—
	Intercompany payables (payments) receipts	(28,674		)	108,688			(16,500		)	57,827			(121,341		)	—
	As corrected - Net cash from (for) financing activities	$	(132,081	)	$	99,886		$	(7,270	)	$	(36,018	)	$	(87,496	)	$	(162,979	)
Condensed Consolidating Balance Sheet	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING BALANCE SHEET
	DECEMBER 31, 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	$	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.
	CONDENSED CONSOLIDATING BALANCE SHEET
	31-Dec-13
	(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	$	75,000		$	4,144		$	35,575		$	3,337		$	—		$	118,056
	Receivables	6			115,972			67,829			552,633			(715,107		)	21,333
	Inventories	—			1,968			1,898			22,214			—			26,080
	Current deferred tax asset	—			5,430			800			3,445			—			9,675
	Other current assets	599			4,443			14,266			7,764			(15,719		)	11,353
		75,605			131,957			120,368			589,393			(730,826		)	186,497
	Property and Equipment, net	447,724			976			243,208			813,855			—			1,505,763
	Investment in Park	514,948			796,735			142,668			63,948			(1,518,299		)	—
	Goodwill	9,061			—			117,810			111,218			—			238,089
	Other Intangibles, net	—			—			16,683			22,788			—			39,471
	Deferred Tax Asset	—			31,122			—			117			(31,239		)	—
	Other Assets	25,210			10,002			6,657			2,938			—			44,807
		$	1,072,548		$	970,792		$	647,394		$	1,604,257		$	(2,280,364	)	$	2,014,627
	LIABILITIES AND PARTNERS’ EQUITY
	Current Liabilities:
	Accounts payable	$	259,850		$	188,818		$	17,632		$	262,029		$	(715,107	)	$	13,222
	Deferred revenue	—			—			2,815			41,706			—			44,521
Accrued interest	4,637			3,223			15,341			—			—			23,201
Accrued taxes	4,609			—			—			30,591			(15,719		)	19,481
Accrued salaries, wages and benefits	—			21,596			1,101			6,503			—			29,200
Self-insurance reserves	—			5,757			1,742			16,154			—			23,653
Other accrued liabilities	1,146			2,993			181			1,201			—			5,521
	270,242			222,387			38,812			358,184			(730,826		)	158,799
Deferred Tax Liability	—			—			57,704			131,648			(31,239		)	158,113
Derivative Liability	15,610			11,052			—			—			—			26,662
Other Liabilities	—			7,858			—			3,432			—			11,290
Long-Term Debt:
Term debt	352,668			251,961			14,221			—						618,850
Notes	294,897			205,103			401,782			—						901,782
	647,565			457,064			416,003			—			—			1,520,632
Equity	139,131			272,431			134,875			1,110,993			(1,518,299		)	139,131
	$	1,072,548		$	970,792		$	647,394		$	1,604,257		$	(2,280,364	)	$	2,014,627
Condensed Consolidating Statement of Operations	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
	For the Year Ended December 31, 2014
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	Net revenues	$	159,454		$	295,252		$	121,249		$	1,034,056		$	(450,406	)	$	1,159,605
	Costs and expenses:
	Cost of food, merchandise and games revenues	—			273			8,985			85,950			—			95,208
	Operating expenses	5,371			195,899			47,013			698,202			(450,406		)	496,079
	Selling, general and administrative	5,791			102,021			11,318			37,734			—			156,864
	Depreciation and amortization	38,341			294			16,910			68,741			—			124,286
	Loss on impairment / retirement of fixed assets, net	2,621			2,463			2,445			2,228			—			9,757
	Gain on sale of other assets	—			—			—			(921		)	—			(921		)
		52,124			300,950			86,671			891,934			(450,406		)	881,273
	Operating income (loss)	107,330			(5,698		)	34,578			142,122			—			278,332
	Interest expense, net	42,440			28,718			34,249			(9,247		)	—			96,160
	Net effect of swaps	(1,595		)	(467		)	—			—			—			(2,062		)
	Loss on early debt extinguishment	—			—			29,261			—			—			29,261
	Unrealized / realized foreign currency loss	—			—			40,873			—			—			40,873
	Other (income) expense	750			(12,920		)	2,482			9,688			—			—
	(Income) loss from investment in affiliates	(48,622		)	(12,899		)	(21,236		)	25,658			57,099			—
	Income (loss) before taxes	114,357			(8,130		)	(51,051		)	116,023			(57,099		)	114,100
	Provision (benefit) for taxes	10,142			(8,473		)	(25,396		)	33,612			—			9,885
	Net income (loss)	$	104,215		$	343		$	(25,655	)	$	82,411		$	(57,099	)	$	104,215
	Other comprehensive income (loss), (net of tax):
	Cumulative foreign currency translation adjustment	5,931			—			5,931			—			(5,931		)	5,931
	Unrealized income on cash flow hedging derivatives	(1,553		)	(66		)	—			—			66			(1,553		)
	Other comprehensive income, (net of tax)	4,378			(66		)	5,931			—			(5,865		)	4,378
	Total Comprehensive Income	$	108,593		$	277		$	(19,724	)	$	82,411		$	(62,964	)	$	108,593
	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
	For the Year Ended December 31, 2013
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	Net revenues	$	152,469		$	296,077		$	127,692		$	1,006,469		$	(448,135	)	$	1,134,572
	Costs and expenses:
	Cost of food, merchandise and games revenues	—			—			9,322			82,450			—			91,772
	Operating expenses	6,003			183,604			47,770			683,102			(448,135		)	472,344
	Selling, general and administrative	5,717			100,825			10,984			34,886			—			152,412
	Depreciation and amortization	36,807			37			17,333			68,310			—			122,487
	Loss on impairment / retirement of fixed assets, net	424			—			479			1,636			—			2,539
	Gain on sale of other assets	—			—			—			(8,743		)	—			(8,743		)
		48,951			284,466			85,888			861,641			(448,135		)	832,811
	Operating income	103,518			11,611			41,804			144,828			—			301,761
	Interest expense, net	42,630			28,875			39,376			(7,964		)	—			102,917
	Net effect of swaps	4,190			2,693			—			—			—			6,883
	Loss on early debt extinguishment	21,175			12,781			617			—			—			34,573
	Unrealized / realized foreign currency gain	—			—			28,941			—			—			28,941
	Other (income) expense	750			(11,257		)	3,679			6,828			—			—
	(Income) loss from investment in affiliates	(83,557		)	(37,520		)	(17,438		)	2,477			136,038			—
	Income (loss) before taxes	118,330			16,039			(13,371		)	143,487			(136,038		)	128,447
	Provision (benefit) for taxes	10,126			(12,133		)	(10,856		)	33,106			—			20,243
	Net income (loss)	$	108,204		$	28,172		$	(2,515	)	$	110,381		$	(136,038	)	$	108,204
	Other comprehensive income, (net of tax):
	Cumulative foreign currency translation adjustment	2,756			—			2,756			—			(2,756		)	2,756
	Unrealized income on cash flow hedging derivatives	10,736			2,848			—			—			(2,848		)	10,736
	Other comprehensive income, (net of tax)	13,492			2,848			2,756			—			(5,604		)	13,492
	Total Comprehensive Income	$	121,696		$	31,020		$	241		$	110,381		$	(141,642	)	$	121,696
	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
	For the Year Ended December 31, 2012
	(In thousands)
		Cedar Fair L.P. (Parent)			Co-Issuer Subsidiary (Magnum)			Co-Issuer Subsidiary (Cedar Canada)			Guarantor Subsidiaries			Eliminations			Total
	Net revenues	$	145,715		$	258,136		$	140,418		$	927,668		$	(403,483	)	$	1,068,454
Costs and expenses:
Cost of food, merchandise and games revenues	—			—			10,316			84,732			—			95,048
Operating expenses	5,380			176,356			47,863			625,287			(403,483		)	451,403
Selling, general and administrative	6,495			86,615			11,135			34,066			—			138,311
Depreciation and amortization	37,660			40			18,199			70,407			—			126,306
Loss on impairment / retirement of fixed assets, net	25,997			—			6			4,333			—			30,336
Gain on sale of other assets	(862		)	—			—			(5,763		)	—			(6,625		)
	74,670			263,011			87,519			813,062			(403,483		)	834,779
Operating income (loss)	71,045			(4,875		)	52,899			114,606			—			233,675
Interest expense, net	48,524			29,328			40,870			(8,171		)	—			110,551
Net effect of swaps	(138		)	121			(1,475		)	—			—			(1,492		)
Unrealized / realized foreign currency gain	—			—			(8,998		)	—			—			(8,998		)
Other (income) expense	749			(9,507		)	2,020			6,738			—			—
(Income) loss from investment in affiliates	(90,022		)	(66,150		)	(14,597		)	(31,759		)	202,528			—
Income (loss) before taxes	111,932			41,333			35,079			147,798			(202,528		)	133,614
Provision (benefit) for taxes	10,075			(9,856		)	3,413			28,125			—			31,757
Net income (loss)	$	101,857		$	51,189		$	31,666		$	119,673		$	(202,528	)	$	101,857
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	369			—			369			—			(369		)	369
Unrealized income (loss) on cash flow hedging derivatives	139			114			21			—			(135		)	139
Other comprehensive income (loss), (net of tax)	508			114			390			—			(504		)	508
Total Comprehensive Income	$	102,365		$	51,303		$	32,056		$	119,673		$	(203,032	)	$	102,365
Condensed Consolidating Statement of Cash Flows	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Year Ended December 31, 2014
	(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	$	138,669		$	12,384		$	9,772		$	180,251		$	(3,973	)	$	337,103
	CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
	Intercompany receivables (payments) receipts	—			13,794			—			(79,456		)	65,662			—
	Sale of other assets	—			—			—			1,377			—			1,377
	(Purchase) sale of subsidiary interest	(12,024		)	12,024			—			—			—			—
	Capital expenditures	(64,837		)	(270		)	(16,072		)	(85,540		)	—			(166,719		)
	Net cash for investing activities	(76,861		)	25,548			(16,072		)	(163,619		)	65,662			(165,342		)
	CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
	Note borrowings	—			—			450,000			—			—			450,000
	Term debt payments, including early termination penalties	(5,698		)	(4,072		)	(230		)	—			—			(10,000		)
	Note payments, including amounts paid for early termination	—			—			(426,148		)	—			—			(426,148		)
	Intercompany payables (payments) receipts	110,763			(37,762		)	5,159			(14,030		)	(64,130		)	—
	Distributions (paid) received	(161,873		)	—			—			—			2,441			(159,432		)
	Payment of debt issuance costs	—			—			(9,795		)	—			—			(9,795		)
	Excess tax benefit from unit-based compensation expense	—			140			—			—			—			140
	Net cash (for) financing activities	(56,808		)	(41,694		)	18,986			(14,030		)	(61,689		)	(155,235		)
	EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(2,742		)	—			—			(2,742		)
	CASH AND CASH EQUIVALENTS
	Net increase (decrease) for the year	5,000			(3,762		)	9,944			2,602			—			13,784
	Balance, beginning of year	75,000			4,144			35,575			3,337			—			118,056
	Balance, end of year	$	80,000		$	382		$	45,519		$	5,939		$	—		$	131,840
	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Year Ended December 31, 2013
	(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	$	162,450		$	22,696		$	13,963		$	138,521		$	(13,173	)	$	324,457
	CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
	Intercompany receivables (payments) receipts	—			44,023						(55,136		)	11,113			—
	Sale of other assets	—			—			—			15,297			—			15,297
	Capital expenditures	(56,254		)	—			(9,723		)	(54,471		)	—			(120,448		)
	Net cash from (for) investing activities	(56,254		)	44,023			(9,723		)	(94,310		)	11,113			(105,151		)
	CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
	Term debt borrowings	359,022			256,500			14,478			—			—			630,000
	Note borrowings	294,897			205,103			—			—			—			500,000
	Intercompany payables (payments) receipts	112,553			(54,236		)	(3,117		)	(44,087		)	(11,113		)	—
	Term debt payments, including early termination penalties	(661,180		)	(466,336		)	(14,734		)	—			—			(1,142,250		)
	Distributions (paid) received	(146,953		)	3,496			(13,173		)	—			13,173			(143,457		)
	Payment of debt issuance costs	(14,535		)	(8,453		)	(544		)	—			—			(23,532		)
	Exercise of limited partnership unit options	—			52			—			—			—			52
	Excess tax benefit from unit-based compensation expense	—			855			—			—			—			855
	Net cash from (for) financing activities	(56,196		)	(63,019		)	(17,090		)	(44,087		)	2,060			(178,332		)
	EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(1,748		)	—			—			(1,748		)
	CASH AND CASH EQUIVALENTS
	Net increase (decrease) for the year	50,000			3,700			(14,598		)	124			—			39,226
	Balance, beginning of year	25,000			444			50,173			3,213			—			78,830
	Balance, end of year	$	75,000		$	4,144		$	35,575		$	3,337		$	—		$	118,056
	CEDAR FAIR, L.P.
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Year Ended December 31, 2012
	(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	$	189,572		$	(75,974	)	$	39,928		$	132,407		$	—		$	285,933
	CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
	Intercompany receivables payments	—			(57,817		)	—			(63,524		)	121,341			—
	Intercompany debt receipts	—			93,845			—			—			(93,845		)	—
	Capital contribution	—			(60,000		)	—			—			60,000			—
	Sale of other assets	1,173			—			—			14,885			—			16,058
	Capital expenditures	(33,664		)	(8		)	(14,551		)	(48,009		)	—			(96,232		)
Net cash from (for) investing activities	(32,491		)	(23,980		)	(14,551		)	(96,648		)	87,496			(80,174		)
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement	—			—			(50,450		)	—			—			(50,450		)
Term debt borrowings	—			—			—			—			—			—
Intercompany payable (payments) receipts	(28,674		)	108,688			(16,500		)	57,827			(121,341		)	—
Intercompany debt payments	—			—			—			(93,845		)	93,845			—
Term debt payments, including early termination penalties	(14,468		)	(10,212		)	(320		)	—			—			(25,000		)
Distributions (paid) received	(88,939		)	126			—			—			—			(88,813		)
Capital infusion	—			—			60,000			—			(60,000		)	—
Exercise of limited partnership unit options	—			76			—			—			—			76
Excess tax benefit from unit-based compensation expense	—			1,208			—			—			—			1,208
Net cash from (for) financing activities	(132,081		)	99,886			(7,270		)	(36,018		)	(87,496		)	(162,979		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			526			—			—			526
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the year	25,000			(68		)	18,633			(259		)	—			43,306
Balance, beginning of year	—			512			31,540			3,472			—			35,524
Balance, end of year	$	25,000		$	444		$	50,173		$	3,213		$	—		$	78,830

Partnership_Organization_Detai

Partnership Organization (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Limited Partners' Capital Account [Line Items]
General partner ownership interest (in percent)	0.00%
Limited Partners' Capital Account, Units Outstanding	55,827,658	55,716,300
Partners' capital account, units held in treasury	1,234,325	1,345,683
Per-unit distribution made to limited partners	$2.85
Aggregate distribution made to limited partners	$159,431,000

Summary_of_Significant_Account3

Summary of Significant Accounting Policies Useful Lives (Details)	12 Months Ended
	Dec. 31, 2014
Land Improvements [Member]
Useful lives (in years)	25 years
Other Machinery and Equipment [Member]
Useful lives (in years)	20 years
Minimum [Member]
Other intangible assets useful life (in years)	5 years
Minimum [Member] | Building [Member]
Useful lives (in years)	25 years
Minimum [Member] | Equipment [Member]
Useful lives (in years)	3 years
Maximum [Member]
Other intangible assets useful life (in years)	20 years
Maximum [Member] | Building [Member]
Useful lives (in years)	40 years
Maximum [Member] | Equipment [Member]
Useful lives (in years)	10 years

Summary_of_Significant_Account4

Summary of Significant Accounting Policies Earnings per Unit (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Basic weighted average units outstanding	55,548,000	55,476,000	55,518,000
Effect of dilutive units:
Deferred units	6,000	0	0
Performance units	31,000	0	0
Restricted units	195,000	103,000	37,000
Unit options	123,000	59,000	6,000
Phantom units	89,000	187,000	334,000
Diluted weighted average units outstanding	55,992,000	55,825,000	55,895,000
Net income (loss) per unit - basic	$1.88	$1.95	$1.83
Net income (loss) per unit - diluted	$1.86	$1.94	$1.82
Unit Options [Member]
Effect of dilutive units:
Antidilutive securities excluded from computation of earnings per unit amount	0	5,000	12,000

Summary_of_Significant_Account5

Summary of Significant Accounting Policies Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gain (Loss) on Sale of Other Assets	$921,000	$8,743,000	$6,625,000
Unrealized / realized foreign currency gain (loss)	40,873,000	28,941,000	-8,998,000
Depreciation and amortization	124,300,000	122,400,000	126,300,000
Gain Loss on Retirement and Impairment of Property Plant and Equipment	-9,757,000	-2,539,000	-30,336,000
Self-insurance reserves	23,377,000	23,653,000
Advertising expense	58,400,000	57,800,000	55,400,000
Unrealized Gain on Notes fx	-39,088,000	-27,786,000	8,758,000
Wildwater Kingdom [Member]
Impairment of long-lived assets held-for-use	$2,449,000	$25,000,000

LongLived_Assets_Details

Long-Lived Assets (Details) (Wildwater Kingdom [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Wildwater Kingdom [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets held-for-use	$2,449	$25,000

Goodwill_Details

Goodwill (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Goodwill (gross)	$308,159	$317,957	$326,089
Accumulated Impairment Losses	-79,868	-79,868	-79,868
Goodwill (net)	228,291	238,089	246,221
Foreign currency translation	($9,798)	($8,132)

Other_Intangible_Assets_Detail

Other Intangible Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Carrying Amount/Value	$37,683	$39,070
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	13 years 5 months 28 days	14 years 7 months 28 days
Accumulated Amortization	310	399
Total other intangible assets, gross carrying amount	38,501	39,870
Total other intangible assets, net carrying value	38,191	39,471
License / Franchise Agreements [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	13 years 5 months 28 days	14 years 7 months 28 days
Gross Carrying Amount	818	800
Accumulated Amortization	310	399
Net Carrying Value	$508	$401

Debt_Instruments_Details

Debt Instruments (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Revolving credit facility	$0	$0
Notes payable	950,000	901,782
Long-term debt	1,558,850	1,520,632
Less: current portion	0	0
Long-term debt, noncurrent	1,558,850	1,520,632
March 2013 Credit Agreement [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.25%	3.25%
Term debt	608,850	618,850
Notes Payable due 2024 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.38%	5.38%
Notes payable	450,000	0
Notes Payable 2021 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.25%	5.25%
Notes payable	500,000	500,000
Notes Payable Due 2018 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	9.13%	9.13%
Notes payable	$0	$401,782

LongTerm_Debt_Narrative_Detail

Long-Term Debt Narrative (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Jun. 30, 2014	Feb. 28, 2011	Mar. 31, 2013
Debt Instrument [Line Items]
Notes payable	$950,000,000	$950,000,000	$901,782,000		950,000,000
Early Repayment of Senior Debt	10,000,000
Redemption of long-term debt		10,000,000	1,142,250,000	25,000,000
Available borrowings under revolving credit facility	238,700,000	238,700,000			238,700,000
Fair value of term debt	605,800,000	605,800,000	620,400,000		605,800,000
Fair value of notes	952,400,000	952,400,000	933,200,000		952,400,000
Interest payments capitalized		3,000,000	1,600,000	1,300,000
Cedar Fair L.P. (Parent) [Member]
Debt Instrument [Line Items]
Redemption of long-term debt		5,698,000	661,180,000	14,468,000
Parent ownership percentage in subsidiaries that guarantee debt	100.00%	100.00%			100.00%
Credit Agreement 2013 [Member] [Domain]
Debt Instrument [Line Items]
Debt instrument, face amount	885,000,000	885,000,000			885,000,000
Credit Agreement 2013 [Member] [Domain] | Canadian Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	15,000,000	15,000,000			15,000,000
Credit Agreement 2013 [Member] [Domain] | Senior Secured Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	630,000,000	630,000,000			630,000,000
Debt Instrument, Periodic Payment		6,300,000
Credit Agreement 2013 [Member] [Domain] | Senior Secured Term Loan [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.50%
Interest rate, stated percentage, minimum (percent)					0.75%
Credit Agreement 2013 [Member] [Domain] | Senior Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	255,000,000	255,000,000			255,000,000
Maximum outstanding revolving credit balance during period		85,000,000
Notes Payable due 2024 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.38%	5.38%	5.38%		5.38%
Notes payable	450,000,000	450,000,000	0		450,000,000
Notes Payable due 2024 [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.38%	5.38%			5.38%	5.38%
Notes payable						450,000,000
Notes Payable due 2024 [Member] | Senior Unsecured Notes [Member] | Debt redemption, prior to June 1, 2019 [Member]
Debt Instrument [Line Items]
Debt instrument, redemption price (percent)						100.00%
Notes Payable due 2024 [Member] | Senior Unsecured Notes [Member] | Debt redemption, prior to June 1, 2017 [Member]
Debt Instrument [Line Items]
Debt instrument, redemption price (percent)						105.38%
Debt instrument, redemption price, percentage of principal amount redeemed						35.00%
Notes Payable Due 2018 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	9.13%	9.13%	9.13%		9.13%
Notes payable	0	0	401,782,000		0
Notes Payable Due 2018 [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	405,000,000	405,000,000			405,000,000
Stated interest rate percentage	9.13%	9.13%			9.13%
Unamortized discount						5,600,000
Effective interest rate (percent)						9.38%
Redemption of long-term debt						405,000,000
Original Issue Discount [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Unamortized discount	5,600,000	5,600,000			5,600,000
Effective interest rate (percent)	9.38%	9.38%			9.38%
2010 Credit Agreement [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	1,435,000,000	1,435,000,000			1,435,000,000
Amended 2010 Credit Agreement [Member]
Debt Instrument [Line Items]
Total-Indebtedness-to-Consolidated-Cash-Flow Ratio requirement, period of measurement, annual		12 months
Total-Indebtedness-to-Consolidated-Cash-Flow Ratio requirement, period of measurement, quarterly		3 months
Length of initial agreement covenant requirement (years)		3 years
Amended 2010 Credit Agreement [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							3.00%
Interest rate, stated percentage, minimum (percent)							1.00%
Amended 2010 Credit Agreement [Member] | Senior Secured Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	1,175,000,000	1,175,000,000			1,175,000,000
Length of maturity date extension (years)		1 year
Amended 2010 Credit Agreement [Member] | Senior Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	260,000,000	260,000,000			260,000,000
Notes Payable 2021 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	5.25%	5.25%	5.25%		5.25%
Notes payable	500,000,000	500,000,000	500,000,000		500,000,000
Notes Payable 2021 [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Effective interest rate (percent)	5.25%	5.25%			5.25%
Redemption percentage of original face amount		100.00%
Debt instrument, early call date percentage of notes available for redemption		35.00%
Debt instrument, early call date premium price percentage		105.25%
March 2013 Credit Agreement [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.25%	3.25%	3.25%		3.25%
Debt instrument consolidated leverage ratio		3.61	3.59
Debt Instrument Ebitda Cushion On Consolidated Leverage Ratio		171,472,000	180,100,000
Total indebtedness to consolidated cash flow ratio	3.65	3.65	3.65		3.65
Total indebtedness to consolidated cash flow, cushion		116,000,000	98,200,000
March 2013 Credit Agreement [Member] | Restricted Payments [Member]
Debt Instrument [Line Items]
Debt instrument consolidated leverage ratio		5
Debt covenant, restricted payments, maximum		60,000,000
March 2013 Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument revised consolidated leverage ratio requirement		6	6.25
Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Standby letters of credit outstanding, amount	$16,300,000	$16,300,000			16,300,000
2013 Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, unused capacity, commitment fee (percent)								0.38%
2013 Credit Agreement [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate								2.50%
Interest rate, stated percentage, minimum (percent)								0.75%
2013 Credit Agreement [Member] | LIBOR [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate								2.25%

Schedule_of_Debt_Maturities_De

Schedule of Debt Maturities (Details) (March 2013 Credit Agreement [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
March 2013 Credit Agreement [Member]
Debt Instrument [Line Items]
2015	$0
2016	2,475
2017	6,300
2018	6,300
2019	6,300
Long-term Debt, Maturities, Repayments of Principal after Year Five	587,475
Total	$608,850	$618,850

Derivative_Financial_Instrumen2

Derivative Financial Instruments Balance Sheet Location (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Long-term debt, amount bearing variable interest rate	$800,000
Current derivative liability	-11,791	0
Derivative Liability	-14,649	-26,662
Derivative assets (liabilities), at fair value, net	-26,440	-26,662
Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	-14,649	-3,916
Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	-11,791	-22,746
Interest Rate Swap [Member] | Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability		26,662
Derivative assets (liabilities), at fair value, net	26,440
Interest Rate Swap [Member] | Designated As Hedging [Member] | Derivative Liability [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability	-14,649	-3,916
Interest Rate Swap [Member] | Not Designated As Hedging [Member] | Derivative Liability [Member]
Derivatives, Fair Value [Line Items]
Current derivative liability	0	-22,746
Interest Rate Swap [Member] | Not Designated As Hedging [Member] | Current Derivative Liability [Member]
Derivatives, Fair Value [Line Items]
Current derivative liability	-11,791	0
Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Losses in accumulated other comprehensive loss	4,900
Losses expected to be reclassified to earnings within next 12 months	$4,900
LIBOR [Member]
Derivatives, Fair Value [Line Items]
Debt, Weighted Average Interest Rate	2.38%

Derivative_Financial_Instrumen3

Derivative Financial Instruments Schedule of Derivatives (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2011	Dec. 31, 2010
Derivative [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	$956	$7,845
Derivative Liabilities, Noncurrent	14,649	26,662
Net effect of swaps	-2,062	6,883	-1,492
Current derivative liability	-11,791	0
Interest Rate Swap [Member]
Derivative [Line Items]
Amortization of deferred hedge gains	7,940	6,283
Forward Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 12 [Member]
Derivative [Line Items]
Notional amount	200,000
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
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
Fixed interest rate	3.00%
Forward Starting Interest Rate Swap [Member] | Forward Starting Interest Rate Swap 15 [Member] [Member]
Derivative [Line Items]
Notional amount	100,000
Fixed interest rate	2.70%
Cash Flow Hedging [Member] | Forward Starting Interest Rate Swap [Member] | September 2010 Swaps [Member]
Derivative [Line Items]
Derivative, Floor Interest Rate				1.50%	1.00%
Cash Flow Hedging [Member] | Forward Starting Interest Rate Swap [Member] | 2013 forwards [Member]
Derivative [Line Items]
Average rate	2.94%
Amount of hedged item	500,000
Number of derivative instruments	4
Libor 30 Day [Member]
Derivative [Line Items]
Variable interest rate	0.17%
Designated As Hedging [Member]
Derivative [Line Items]
Notional amount	500,000
Fixed interest rate	2.94%
Designated As Hedging [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Liabilities, Noncurrent		-26,662
Not Designated As Hedging [Member]
Derivative [Line Items]
Notional amount	800,000
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
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
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
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
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
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
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
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
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
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
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
Fixed interest rate	2.30%
Credit Agreement 2013 [Member] [Domain]
Derivative [Line Items]
Debt instrument, face amount	885,000
2013 Credit Agreement [Member]
Derivative [Line Items]
Derivative, Floor Interest Rate	1.00%
Debt instrument, LIBOR floor, decrease to percent	0.75%
Senior Secured Term Loan [Member] | Credit Agreement 2013 [Member] [Domain]
Derivative [Line Items]
Debt instrument, face amount	630,000
Senior Secured Term Loan [Member] | Amended 2010 Credit Agreement [Member]
Derivative [Line Items]
Debt instrument, face amount	1,175,000
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	3,703
Net Effect of Swaps [Member] | Not Designated As Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	10,958	3,547
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	$10,958	$3,547

Derivative_Financial_Instrumen4

Derivative Financial Instruments Income Statement Location (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2011	Dec. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Gain on ineffective portion of derivatives		$7,245
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	956	7,845
Net effect of swaps	-2,062	6,883	-1,492
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amortization of deferred hedge gains	7,940	6,283
Designated As Hedging [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in accumulated OCI on derivatives (effective portion)	-10,735	-1,650
Designated As Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount and location of gain (loss) reclassified from accumulated OCI into income (effective portion)	0	-2,797
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	3,703
Not Designated As Hedging [Member] | Net Effect of Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	10,958	3,547
Not Designated As Hedging [Member] | Interest Rate Swap [Member] | Net Effect of Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$10,958	$3,547
September 2010 Swaps [Member] | Forward Starting Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Floor Interest Rate				1.50%	1.00%

Partners_Equity_Narrative_Deta

Partners' Equity Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Special L.P. interests	$5,290,000	$5,290,000
Unit options and other forms of equity authorized under equity incentive plan	2,500,000
Compensation expense related to non-option equity instruments	9,668,000	6,391,000	4,476,000
Unit options granted in period	0
Total intrinsic value of options exercised	1,000,000	200,000	400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares	146,273		410,570
Fixed Price Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation related to unvested phantom unit awards	500,000
Unamortized compensation related to unvested phantom unit awards, period for recognition	0 years 10 months 18 days
Compensation Plans Settable in Cash or Equity [Member] | Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to non-option equity instruments	1,700,000	5,000,000	3,400,000
Non-option equity instruments, units outstanding	81,611
Non-option equity instruments, vested units outstanding	80,580
Closing price per unit	$47.83
Aggregate market value of vested units, current portion	3,900,000	4,900,000
Aggregate market value of vested units, noncurrent portion		3,200,000
Unamortized compensation related to unvested phantom unit awards	700,000
Unamortized compensation related to unvested phantom unit awards, period for recognition	1 month 6 days
Issuable share-based Units	81,611
Compensation Plans Settable in Cash or Equity [Member] | Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to non-option equity instruments	5,285,480	3,620,000	3,354,000
Non-option equity instruments, units outstanding	264,398
Non-option equity instruments, vested units outstanding	168,844
Closing price per unit	$47.83
Unamortized compensation related to unvested phantom unit awards	7,500,000
Unamortized compensation related to unvested phantom unit awards, period for recognition	1 year 7 months 0 days
Issuable share-based Units	70,692
Non-option equity instruments awarded	88,544
Grant price per unit	54.1
Aggregate market value of contingently issuable units		3,607,000
Compensation Plans Settable in Cash or Equity [Member] | Performance Units [Member] | Accrued Salaries, Wages and Benefits [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate market value of contingently issuable units	3,627,197
Compensation Plans Settable in Cash or Equity [Member] | Performance Units [Member] | Other Liabilities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate market value of contingently issuable units	5,236,238
Compensation Plans Settable in Cash or Equity [Member] | Deferred Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, units outstanding	9.588
Closing price (in dollars per share)	$47.83
Non-option equity instruments, vested units outstanding	10,148
Unamortized compensation related to unvested phantom unit awards	0
Non-option equity instruments awarded	9,588
Grant price per unit	50.07
Award vesting period	1 year
Share-based compensation expense	480,000
Aggregate market value of contingently issuable units	480,000
Compensation Plans Settable in Equity [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Distribution equivalent liability	1,536,590
Intrinsic value of restricted units that vested	942,785
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	30.10%	37.20%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.88%	2.31%
Option valuation of distribution amount	2.5	1.6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			280,672
Unit options granted in period		413,248
Unit options granted in period, fair value per share	$3.47	$4.92
Non-cash compensation expense relating to unit options	891,376	903,105	345,228
Compensation Plans Settable in Equity [Member] | Fixed Price Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unit options outstanding	622,316
Compensation Plans Settable in Equity [Member] | Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, units outstanding	124,234
Non-option equity instruments, vested units outstanding	27,953
Unamortized compensation related to unvested phantom unit awards	4,900,000
Unamortized compensation related to unvested phantom unit awards, period for recognition	3 years 11 months 12 days
Non-option equity instruments awarded	124,234
Grant price per unit	50.95
Period to achieve performance targets	3 years
Period to pay-out awards	2 years
Share-based compensation expense	1,424,188
Compensation Plans Settable in Equity [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense related to non-option equity instruments	3,729,218	2,570,450	1,200,000
Non-option equity instruments, vested units outstanding	122,099
Unamortized compensation related to unvested phantom unit awards	$3,628,161
Unamortized compensation related to unvested phantom unit awards, period for recognition	1 year 8 months 6 days
Restricted units set to vest	157,157
Non-option equity instruments awarded	201,168
Award vesting period	3 years
Compensation Plans Settable in Equity [Member] | Restricted Units February 2013 Award [Member] [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments awarded	66,550
Grant price per unit	53.77
Compensation Plans Settable in Equity [Member] | 2013 and 2012 Option Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Expected term, maximum	10 years

Unit_Option_Activity_Details

Unit Option Activity (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Unit options, outstanding	684,822	294,022
Granted, net of forfeitures	0
Unit options, exercised	-49,656	-16,278
Unit options, forfeited	-12,850	-6,170
Unit options, outstanding	622,316	684,822	294,022
Unit options exercisable	476,043	274,252
Unit options outstanding, weighted average exercise price	$33.97	$29.45
Unit options granted, weighted average exercise price	$0	$36.95
Unit options exercised, weighted average exercise price	$32.93	$28.36
Unit options forfeited, weighted average exercise price	$34.96	$32.93
Unit options outstanding, weighted average exercise price	$34.03	$33.97	$29.45
Unit options exercisable, weighted average exercise price	$33.45	$32.61
Cash received from unit option exercises	$0	$52	$76

Vested_Unit_Options_Outstandin

Vested Unit Options Outstanding (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price	$34.03	$33.97	$29.45
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	476,043	274,252
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Remaining Contractual Life	7 years 8 months 18 days
Weighted Average Exercise Price	$33.45
Range of Exercise Prices, Lower Limit	$29.53
Range of Exercise Prices, Upper Limit	$36.95
Aggregate intrinsic value	$6,843

Partners_Equity_Nonvested_Unit

Partners' Equity Nonvested Unit Options Activity (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] [Roll Forward]
Nonvested, beginning of year		410,570
Granted, net of forfeitures	0
Vested	-201,791
Exercised	-49,656
Forfeited	-12,850
Nonvested, beginning of year	146,273
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Nonvested, beginning of year		$34.88
Granted, net of forfeitures	$0	$36.95
Exercised	$32.93
Vested	$34.60
Forfeited	$34.96
Nonvested, end of year	$35.92

Retirement_Plans_Details

Retirement Plans (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	Employees
Noncontributory retirement plans, amounts accrued	$4.30	$4.40	$3.90
Matching contributions made by partnership, net of forfeitures	2.1	1.9	1.7
Multiemployer Plan, Number of Employees	219
Multiemployer plan, contributions made in period	$1.50	$1.30	$1.30

Income_and_Partnership_Taxes_N

Income and Partnership Taxes Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Valuation Allowance, Amount	$5,680,000	$6,792,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	400,000
Provision (benefit) for taxes	9,885,000	20,243,000	31,757,000
Provision for the PTP tax	9,600,000	9,600,000	8,700,000
Provision (benefit) pertaining to corporate subsidiaries	273,000	10,594,000	23,012,000
U.S. federal statutory income tax rate	35.00%
Foreign tax credit carryforwards available for U.S. federal income tax purposes	16,844,000	24,300,000
Valuation allowance	-1,112,000	-4,460,000	-6,030,000
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential	7,500,000
Tax attribute carryforwards	7,906,000	8,566,000
Alternative minimum tax credits	1,200,000
General business credits	3,200,000
State net operating loss carryforwards	3,500,000
Deferred Tax Liabilities, Other Comprehensive Income	4,300,000	1,200,000
Unrecognized Tax Benefits, Income Tax Penalties Accrued	200,000
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions	0	0
Unrecognized Tax Benefits	$1,200,000	$1,100,000	$1,100,000

Income_Tax_Expense_Details

Income Tax Expense (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current federal	$4,513	$5,398	($1,081)
Current state and local	1,413	1,436	743
Current foreign	-2,692	412	-4,152
Total current	3,234	7,246	-4,490
Deferred federal, state and local	9,239	9,989	9,237
Deferred foreign	-12,200	-6,641	18,265
Total deferred	-2,961	3,348	27,502
Provision (benefit) pertaining to corporate subsidiaries	$273	$10,594	$23,012

Income_Before_Taxes_Details

Income Before Taxes (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Domestic	$186,389	$159,256	$113,132
Foreign	-72,289	-30,809	20,482
Income (loss) before taxes	$114,100	$128,447	$133,614

Effective_Income_Tax_Reconcili

Effective Income Tax Reconciliation (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income tax expense based on U.S. federal statutory income tax rate	$39,935	$44,956	$46,765
Partnership loss (income) not deductible (includible) from (in) corporate income	-39,922	-31,574	-21,273
State and local taxes, net of federal income tax benefit	1,786	2,459	3,486
Valuation allowance	-1,112	-4,460	-6,030
Tax credits	-997	-1,303	-2,100
Nondeductible expenses and other	583	516	2,164
Provision (benefit) pertaining to corporate subsidiaries	$273	$10,594	$23,012

Deferred_Tax_Assets_and_Liabil1

Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred tax assets:
Options and deferred compensation	$12,476	$11,086
Accrued expenses	7,380	6,369
Foreign tax credits	16,844	24,300
Tax attribute carryforwards	7,906	8,566
Derivatives	3,044	4,377
Other, net	483	402
Deferred tax assets	55,619	56,483
Valuation allowance	-5,680	-6,792
Net deferred tax assets	49,939	49,691
Deferred Tax Assets, Unrealized Currency Losses	2,645	0
Deferred Tax Assets, Deferred Income	4,841	1,383
Deferred tax liabilities:
Property	-182,434	-190,175
Derferred Tax Liability, Intangibles	-10,753	-7,569
Foreign currency translation	0	-385
Deferred tax liabilities	193,187	198,129
Net deferred tax liability	-143,248	-148,438
Net current and non-current components of deferred taxes:
Net current deferred tax asset	9,265	9,675
Net non-current deferred tax liability	-152,513	-158,113
Net deferred tax liability	($143,248)	($148,438)

Income_and_Partnership_Taxes_U

Income and Partnership Taxes Unrecognized Tax Benefits (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits	$1,200	$1,100	$1,100
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	0	0
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions	100	0
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities	0	0
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	$0	$0

Contingencies_Details

Contingencies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Lease Commitments and Contingencies [Abstract]
Operating lease expense	$12.70	$12.70	$12

Future_Minimum_Lease_Payments_

Future Minimum Lease Payments (Details) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Operating Leased Assets [Line Items]
2015	$8,823
2016	8,060
2017	7,632
2018	6,937
2019	6,071
Thereafter	107,043
Total future minimum payments due	$144,566

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	($14,649,000)		($26,662,000)
Current derivative liability	-11,791,000		0
Net derivative liability	-26,440,000		-26,662,000
Increase in net derivative liability	800,000
Fair value of term debt	605,800,000		620,400,000
Fair value of notes	952,400,000		933,200,000
Wildwater Kingdom [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived fixed assets	17,118,000
Impairment of long-lived assets held-for-use	2,449,000		25,000,000
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-26,440,000		-26,662,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived fixed assets			19,800,000
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
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-26,440,000		-26,662,000
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
Designated As Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-14,649,000		-3,916,000
Designated As Hedging [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability			26,662,000
Net derivative liability	26,440,000
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	-14,649,000	[1]	-3,916,000	[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
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	-14,649,000		-3,916,000
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
Not Designated As Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liability	-11,791,000		-22,746,000
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	-11,791,000	[1]	-22,746,000	[1]
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		0
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	-11,791,000		-22,746,000
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		$0
[1]	ncluded in "Derivative Liability" on the Consolidated Balance Sheet

Changes_in_Accumulated_Other_C2

Changes in Accumulated Other Comprehensive Income - Changes in AOCI (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	($15,008)	[1]	($28,500)	[1]
Other comprehensive income before reclassifications	-3,174	[1]	1,510	[1]
Amounts reclassified from accumulated other comprehensive income	7,552	[1],[2]	11,982	[1],[2]
Net current-period other comprehensive income	4,378	[1]	13,492	[1]	508
Ending balance	-10,630	[1]	-15,008	[1]	-28,500	[1]
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	-15,013	[1]	-25,749	[1]
Other comprehensive income before reclassifications	-9,105	[1]	-1,246	[1]
Other comprehensive income before reclassifications, tax	1,630		405
Amounts reclassified from accumulated other comprehensive income	7,552	[1],[2]	11,982	[1],[2]
Amounts reclassified from accumulated other comprehensive income, tax	-1,341		-2,150
Net current-period other comprehensive income	-1,553	[1]	10,736	[1]
Ending balance	-16,566	[1]	-15,013	[1]
Cumulative Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	5	[1]	-2,751	[1]
Other comprehensive income before reclassifications	5,931	[1]	2,756	[1]
Other comprehensive income before reclassifications, tax	-3,410		-1,586
Amounts reclassified from accumulated other comprehensive income	0	[1],[2]	0	[1],[2]
Amounts reclassified from accumulated other comprehensive income, tax	0		0
Net current-period other comprehensive income	5,931	[1]	2,756	[1]
Ending balance	$5,936	[1]	$5	[1]
[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.

Changes_in_Accumulated_Other_C3

Changes in Accumulated Other Comprehensive Income - Reclassifications Out of Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net effect of swaps	$2,062		($6,883)		$1,492
Total before tax	114,100		128,447		133,614
Provision (benefit) for taxes	-9,885		-20,243		-31,757
Net income (loss)	104,215		108,204		101,857
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	8,893	[1]	14,132	[1]
Provision (benefit) for taxes	-1,341	[1]	-2,150	[1]
Net income (loss)	7,552	[1]	11,982	[1]
Interest Rate Contract [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net effect of swaps	$8,893	[1]	$14,132	[1]
[1]	Amounts in parentheses indicate gains.

Consolidating_Financial_Inform2

Consolidating Financial Information of Guarantors and Issuers (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities	$337,103	$324,457	$285,933
Net cash from (for) investing activities	-165,342	-105,151	-80,174
Intercompany receivables (payments) receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Net cash from (for) financing activities	-155,235	-178,332	-162,979
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts			0
As Reported [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		324,457	285,933
Net cash from (for) investing activities		-105,151	-80,174
Net cash from (for) financing activities		-178,332	-162,979
Adjustment [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Investment in joint ventures and affiliates		0	0
Intercompany receivables (payments) receipts		0	0
Intercompany payables (payments) receipts		0	0
Dividends paid		0
Investment in joint ventures and affiliates		0	0
Intercompany receivables (payments) receipts		0	0
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Investment in joint ventures and affiliates			0
Payments of Dividends		0
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts		0	0
Eliminations [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		-13,173	0
Net cash from (for) investing activities		11,113	87,496
Net cash from (for) financing activities		2,060	-87,496
Eliminations [Member] | As Reported [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		-94,095	-39,851
Net cash from (for) investing activities		94,095	39,851
Net cash from (for) financing activities		0	0
Eliminations [Member] | Adjustment [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Investment in joint ventures and affiliates		94,095	39,851
Intercompany receivables (payments) receipts		-11,113	-121,341
Intercompany payables (payments) receipts		11,113	121,341
Dividends paid		-13,173
Investment in joint ventures and affiliates		-94,095	-39,851
Intercompany receivables (payments) receipts		11,113	121,341
Intercompany debt receipts			-93,845
Payments for (Proceeds from) Other Investing Activities			60,000
Investment in joint ventures and affiliates			93,845
Payments of Dividends		13,173
Proceeds from (Payments for) Other Financing Activities			-60,000
Intercompany payables (payments) receipts		-11,113	-121,341
Cedar Fair L.P. (Parent) [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities	138,669	162,450	189,572
Net cash from (for) investing activities	-76,861	-56,254	-32,491
Intercompany receivables (payments) receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Net cash from (for) financing activities	-56,808	-56,196	-132,081
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts			-28,674
Cedar Fair L.P. (Parent) [Member] | As Reported [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		304,815	130,043
Net cash from (for) investing activities		-86,066	-1,636
Net cash from (for) financing activities		-168,749	-103,407
Cedar Fair L.P. (Parent) [Member] | Adjustment [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Investment in joint ventures and affiliates		-29,812	30,855
Intercompany receivables (payments) receipts		0	0
Intercompany payables (payments) receipts		-112,553	28,674
Dividends paid		0
Investment in joint ventures and affiliates		29,812	-30,855
Intercompany receivables (payments) receipts		0	0
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Investment in joint ventures and affiliates			0
Payments of Dividends		0
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts		112,553	-28,674
Co-Issuer Subsidiary (Magnum) [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities	12,384	22,696	-75,974
Net cash from (for) investing activities	25,548	44,023	-23,980
Intercompany receivables (payments) receipts			93,845
Payments for (Proceeds from) Other Investing Activities			60,000
Net cash from (for) financing activities	-41,694	-63,019	99,886
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts			108,688
Co-Issuer Subsidiary (Magnum) [Member] | As Reported [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		37,035	30,996
Net cash from (for) investing activities		-24,552	-56,107
Net cash from (for) financing activities		-8,783	25,043
Co-Issuer Subsidiary (Magnum) [Member] | Adjustment [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Investment in joint ventures and affiliates		-24,552	-56,099
Intercompany receivables (payments) receipts		-44,023	57,817
Intercompany payables (payments) receipts		54,236	-108,688
Dividends paid		0
Investment in joint ventures and affiliates		24,552	56,099
Intercompany receivables (payments) receipts		44,023	-57,817
Intercompany debt receipts			93,845
Payments for (Proceeds from) Other Investing Activities			-60,000
Investment in joint ventures and affiliates			-93,845
Payments of Dividends		0
Proceeds from (Payments for) Other Financing Activities			60,000
Intercompany payables (payments) receipts		-54,236	108,688
Co-Issuer Subsidiary (Cedar Canada) [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities	9,772	13,963	39,928
Net cash from (for) investing activities	-16,072	-9,723	-14,551
Intercompany receivables (payments) receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Net cash from (for) financing activities	18,986	-17,090	-7,270
Proceeds from (Payments for) Other Financing Activities			60,000
Intercompany payables (payments) receipts			-16,500
Co-Issuer Subsidiary (Cedar Canada) [Member] | As Reported [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		30,786	21,256
Net cash from (for) investing activities		-42,836	-12,379
Net cash from (for) financing activities		-800	9,230
Co-Issuer Subsidiary (Cedar Canada) [Member] | Adjustment [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Investment in joint ventures and affiliates		-33,113	2,172
Intercompany receivables (payments) receipts		0	0
Intercompany payables (payments) receipts		3,117	16,500
Dividends paid		13,173
Investment in joint ventures and affiliates		33,113	-2,172
Intercompany receivables (payments) receipts		0	0
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Investment in joint ventures and affiliates			0
Payments of Dividends		-13,173
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts		-3,117	-16,500
Guarantor Subsidiaries [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities	180,251	138,521	132,407
Net cash from (for) investing activities	-163,619	-94,310	-96,648
Intercompany receivables (payments) receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Net cash from (for) financing activities	-14,030	-44,087	-36,018
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts			57,827
Guarantor Subsidiaries [Member] | As Reported [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Net cash from (for) operating activities		45,916	143,489
Net cash from (for) investing activities		-45,792	-49,903
Net cash from (for) financing activities		0	-93,845
Guarantor Subsidiaries [Member] | Adjustment [Member]
Statements of Cash Flows, Revisions and Retrospective Adjustments [Abstract]
Investment in joint ventures and affiliates		-6,618	-16,779
Intercompany receivables (payments) receipts		55,136	63,524
Intercompany payables (payments) receipts		44,087	-57,827
Dividends paid		0
Investment in joint ventures and affiliates		6,618	16,779
Intercompany receivables (payments) receipts		-55,136	-63,524
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Investment in joint ventures and affiliates			0
Payments of Dividends		0
Proceeds from (Payments for) Other Financing Activities			0
Intercompany payables (payments) receipts		($44,087)	$57,827
Notes Payable due 2024 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	5.38%	5.38%
Notes Payable 2021 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	5.25%	5.25%
Unsecured Debt [Member]
Condensed Financial Statements, Captions [Line Items]
Subsidiary ownership percentage, guaranteeing notes	100.00%
Subsidiary guarantor ownership percentage	100.00%
Unsecured Debt [Member] | Notes Payable due 2024 [Member]
Condensed Financial Statements, Captions [Line Items]
Stated interest rate percentage	5.38%			5.38%
Unsecured Debt [Member] | Notes Payable 2021 [Member]
Condensed Financial Statements, Captions [Line Items]
Effective interest rate (percent)	5.25%

Consolidating_Financial_Inform3

Consolidating Financial Information of Guarantors and Issuers Balance Sheet (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Current Assets:
Cash and cash equivalents	$131,840	$118,056	$78,830	$35,524
Receivables	27,395	21,333
Inventories	25,883	26,080
Current deferred tax asset	9,265	9,675
Other current assets	9,334	11,353
Total current assets	203,717	186,497
Property and equipment (net)	1,526,551	1,505,763
Investment In Park	0	0
Goodwill	228,291	238,089	246,221
Other intangibles, net	38,191	39,471
Deferred Tax Asset	0	0
Other Assets	41,569	44,807
Assets	2,038,319	2,014,627
Current Liabilities:
Current maturities of long-term debt	0	0
Accounts payable	23,933	13,222
Deferred revenue	61,161	44,521
Accrued interest	9,916	23,201
Accrued taxes	21,800	19,481
Accrued salaries, wages and benefits	34,102	29,200
Self-insurance reserves	23,377	23,653
Derivative Liability, Current	11,791	0
Other accrued liabilities	12,139	5,521
Total current liabilities	198,219	158,799
Deferred Tax Liability	152,513	158,113
Derivative Liability	14,649	26,662
Other Liabilities	17,871	11,290
Long-Term Debt:
Term debt	608,850	618,850
Notes	950,000	901,782
Long-term debt, noncurrent	1,558,850	1,520,632
Equity	96,217	139,131	154,451
Total Partners' Equity and Liabilities	2,038,319	2,014,627
Cedar Fair L.P. (Parent) [Member]
Current Assets:
Cash and cash equivalents	80,000	75,000	25,000	0
Receivables	8	6
Inventories	0	0
Current deferred tax asset	0	0
Other current assets	680	599
Total current assets	80,688	75,605
Property and equipment (net)	470,851	447,724
Investment In Park	544,340	514,948
Goodwill	9,061	9,061
Other intangibles, net	0	0
Deferred Tax Asset	0	0
Other Assets	10,615	25,210
Assets	1,115,555	1,072,548
Current Liabilities:
Accounts payable	352,518	259,850
Deferred revenue	0	0
Accrued interest	4,637	4,637
Accrued taxes	4,309	4,609
Accrued salaries, wages and benefits	0	0
Self-insurance reserves	0	0
Derivative Liability, Current	7,062
Other accrued liabilities	508	1,146
Total current liabilities	369,034	270,242
Deferred Tax Liability	0	0
Derivative Liability	8,438	15,610
Other Liabilities	0	0
Long-Term Debt:
Term debt	346,969	352,668
Notes	294,897	294,897
Long-term debt, noncurrent	641,866	647,565
Equity	96,217	139,131
Total Partners' Equity and Liabilities	1,115,555	1,072,548
Co-Issuer Subsidiary (Magnum) [Member]
Current Assets:
Cash and cash equivalents	382	4,144	444	512
Receivables	143,931	115,972
Inventories	2,074	1,968
Current deferred tax asset	4,547	5,430
Other current assets	2,079	4,443
Total current assets	153,013	131,957
Property and equipment (net)	5,630	976
Investment In Park	812,549	796,735
Goodwill	0	0
Other intangibles, net	0	0
Deferred Tax Asset	24,827	31,122
Other Assets	20,874	10,002
Assets	1,016,893	970,792
Current Liabilities:
Accounts payable	203,895	188,818
Deferred revenue	60	0
Accrued interest	3,223	3,223
Accrued taxes	0	0
Accrued salaries, wages and benefits	25,851	21,596
Self-insurance reserves	5,386	5,757
Derivative Liability, Current	4,729
Other accrued liabilities	8,134	2,993
Total current liabilities	251,278	222,387
Deferred Tax Liability	0	0
Derivative Liability	6,211	11,052
Other Liabilities	6,105	7,858
Long-Term Debt:
Term debt	247,890	251,961
Notes	205,103	205,103
Long-term debt, noncurrent	452,993	457,064
Equity	300,306	272,431
Total Partners' Equity and Liabilities	1,016,893	970,792
Co-Issuer Subsidiary (Cedar Canada) [Member]
Current Assets:
Cash and cash equivalents	45,519	35,575	50,173	31,540
Receivables	85,838	67,829
Inventories	1,594	1,898
Current deferred tax asset	674	800
Other current assets	23,818	14,266
Total current assets	157,443	120,368
Property and equipment (net)	218,260	243,208
Investment In Park	163,904	142,668
Goodwill	108,012	117,810
Other intangibles, net	15,312	16,683
Deferred Tax Asset	0	0
Other Assets	8,034	6,657
Assets	670,965	647,394
Current Liabilities:
Accounts payable	32,691	17,632
Deferred revenue	4,592	2,815
Accrued interest	2,056	15,341
Accrued taxes	0	0
Accrued salaries, wages and benefits	1,103	1,101
Self-insurance reserves	1,565	1,742
Derivative Liability, Current	0
Other accrued liabilities	122	181
Total current liabilities	42,129	38,812
Deferred Tax Liability	49,695	57,704
Derivative Liability	0	0
Other Liabilities	0	0
Long-Term Debt:
Term debt	13,991	14,221
Notes	450,000	401,782
Long-term debt, noncurrent	463,991	416,003
Equity	115,150	134,875
Total Partners' Equity and Liabilities	670,965	647,394
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	5,939	3,337	3,213	3,472
Receivables	634,112	552,633
Inventories	22,215	22,214
Current deferred tax asset	4,044	3,445
Other current assets	5,905	7,764
Total current assets	672,215	589,393
Property and equipment (net)	831,810	813,855
Investment In Park	43,659	63,948
Goodwill	111,218	111,218
Other intangibles, net	22,879	22,788
Deferred Tax Asset	0	117
Other Assets	2,046	2,938
Assets	1,683,827	1,604,257
Current Liabilities:
Accounts payable	271,323	262,029
Deferred revenue	56,509	41,706
Accrued interest	0	0
Accrued taxes	40,639	30,591
Accrued salaries, wages and benefits	7,148	6,503
Self-insurance reserves	16,426	16,154
Derivative Liability, Current	0
Other accrued liabilities	3,375	1,201
Total current liabilities	395,420	358,184
Deferred Tax Liability	127,645	131,648
Derivative Liability	0	0
Other Liabilities	11,766	3,432
Long-Term Debt:
Term debt	0	0
Notes	0	0
Long-term debt, noncurrent	0	0
Equity	1,148,996	1,110,993
Total Partners' Equity and Liabilities	1,683,827	1,604,257
Eliminations [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Receivables	-836,494	-715,107
Inventories	0	0
Current deferred tax asset	0	0
Other current assets	-23,148	-15,719
Total current assets	-859,642	-730,826
Property and equipment (net)	0	0
Investment In Park	-1,564,452	-1,518,299
Goodwill	0	0
Other intangibles, net	0	0
Deferred Tax Asset	-24,827	-31,239
Other Assets	0	0
Assets	-2,448,921	-2,280,364
Current Liabilities:
Accounts payable	-836,494	-715,107
Deferred revenue	0	0
Accrued interest	0	0
Accrued taxes	-23,148	-15,719
Accrued salaries, wages and benefits	0	0
Self-insurance reserves	0	0
Derivative Liability, Current	0
Other accrued liabilities	0	0
Total current liabilities	-859,642	-730,826
Deferred Tax Liability	-24,827	-31,239
Derivative Liability	0	0
Other Liabilities	0	0
Long-Term Debt:
Term debt	0
Notes	0
Long-term debt, noncurrent	0	0
Equity	-1,564,452	-1,518,299
Total Partners' Equity and Liabilities	($2,448,921)	($2,280,364)

Consolidating_Financial_Inform4

Consolidating Financial Information of Guarantors and Issuers Income Statement (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Net revenues	$1,159,605		$1,134,572		$1,068,454
Costs and expenses:
Cost of food, merchandise and games revenues	95,208		91,772		95,048
Operating expenses	496,079		472,344		451,403
Selling, general and administrative	156,864		152,412		138,311
Depreciation and amortization	124,286		122,487		126,306
Loss on impairment / retirement of fixed assets, net	9,757		2,539		30,336
Gain on Sale of Other Assets	-921		-8,743		-6,625
Total costs and expenses	881,273		832,811		834,779
Operating income	278,332		301,761		233,675
Interest expense (income), net	96,160		102,917		110,551
Net effect of swaps	-2,062		6,883		-1,492
Loss on early extinguishment of debt	29,261		34,573		0
Unrealized / realized foreign currency gain (loss)	40,873		28,941		-8,998
Other (income) expense	0		0		0
(Income) loss from investment in affiliates	0		0		0
Income (loss) before taxes	114,100		128,447		133,614
Provision (benefit) for taxes	9,885		20,243		31,757
Net income (loss)	104,215		108,204		101,857
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	5,931		2,756		369
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	-1,553		10,736		139
Other Comprehensive Income (Loss), Net of Tax	4,378	[1]	13,492	[1]	508
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	108,593		121,696		102,365
Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	159,454		152,469		145,715
Costs and expenses:
Cost of food, merchandise and games revenues	0		0		0
Operating expenses	5,371		6,003		5,380
Selling, general and administrative	5,791		5,717		6,495
Depreciation and amortization	38,341		36,807		37,660
Loss on impairment / retirement of fixed assets, net	2,621		424		25,997
Gain on Sale of Other Assets	0		0		-862
Total costs and expenses	52,124		48,951		74,670
Operating income	107,330		103,518		71,045
Interest expense (income), net	42,440		42,630		48,524
Net effect of swaps	-1,595		4,190		-138
Loss on early extinguishment of debt	0		21,175
Unrealized / realized foreign currency gain (loss)	0		0		0
Other (income) expense	750		750		749
(Income) loss from investment in affiliates	-48,622		-83,557		-90,022
Income (loss) before taxes	114,357		118,330		111,932
Provision (benefit) for taxes	10,142		10,126		10,075
Net income (loss)	104,215		108,204		101,857
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	5,931		2,756		369
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	-1,553		10,736		139
Other Comprehensive Income (Loss), Net of Tax	4,378		13,492		508
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	108,593		121,696		102,365
Co-Issuer Subsidiary (Magnum) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	295,252		296,077		258,136
Costs and expenses:
Cost of food, merchandise and games revenues	273		0		0
Operating expenses	195,899		183,604		176,356
Selling, general and administrative	102,021		100,825		86,615
Depreciation and amortization	294		37		40
Loss on impairment / retirement of fixed assets, net	2,463		0		0
Gain on Sale of Other Assets	0		0		0
Total costs and expenses	300,950		284,466		263,011
Operating income	-5,698		11,611		-4,875
Interest expense (income), net	28,718		28,875		29,328
Net effect of swaps	-467		2,693		121
Loss on early extinguishment of debt	0		12,781
Unrealized / realized foreign currency gain (loss)	0		0		0
Other (income) expense	-12,920		-11,257		-9,507
(Income) loss from investment in affiliates	-12,899		-37,520		-66,150
Income (loss) before taxes	-8,130		16,039		41,333
Provision (benefit) for taxes	-8,473		-12,133		-9,856
Net income (loss)	343		28,172		51,189
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0		0		0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	-66		2,848		114
Other Comprehensive Income (Loss), Net of Tax	-66		2,848		114
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	277		31,020		51,303
Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	121,249		127,692		140,418
Costs and expenses:
Cost of food, merchandise and games revenues	8,985		9,322		10,316
Operating expenses	47,013		47,770		47,863
Selling, general and administrative	11,318		10,984		11,135
Depreciation and amortization	16,910		17,333		18,199
Loss on impairment / retirement of fixed assets, net	2,445		479		6
Gain on Sale of Other Assets	0		0		0
Total costs and expenses	86,671		85,888		87,519
Operating income	34,578		41,804		52,899
Interest expense (income), net	34,249		39,376		40,870
Net effect of swaps	0		0		-1,475
Loss on early extinguishment of debt	29,261		617
Unrealized / realized foreign currency gain (loss)	40,873		28,941		-8,998
Other (income) expense	2,482		3,679		2,020
(Income) loss from investment in affiliates	-21,236		-17,438		-14,597
Income (loss) before taxes	-51,051		-13,371		35,079
Provision (benefit) for taxes	-25,396		-10,856		3,413
Net income (loss)	-25,655		-2,515		31,666
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	5,931		2,756		369
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	0		0		21
Other Comprehensive Income (Loss), Net of Tax	5,931		2,756		390
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	-19,724		241		32,056
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	1,034,056		1,006,469		927,668
Costs and expenses:
Cost of food, merchandise and games revenues	85,950		82,450		84,732
Operating expenses	698,202		683,102		625,287
Selling, general and administrative	37,734		34,886		34,066
Depreciation and amortization	68,741		68,310		70,407
Loss on impairment / retirement of fixed assets, net	2,228		1,636		4,333
Gain on Sale of Other Assets	-921		-8,743		-5,763
Total costs and expenses	891,934		861,641		813,062
Operating income	142,122		144,828		114,606
Interest expense (income), net	-9,247		-7,964		-8,171
Net effect of swaps	0		0		0
Loss on early extinguishment of debt	0		0
Unrealized / realized foreign currency gain (loss)	0		0		0
Other (income) expense	9,688		6,828		6,738
(Income) loss from investment in affiliates	25,658		2,477		-31,759
Income (loss) before taxes	116,023		143,487		147,798
Provision (benefit) for taxes	33,612		33,106		28,125
Net income (loss)	82,411		110,381		119,673
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0		0		0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	0		0		0
Other Comprehensive Income (Loss), Net of Tax	0		0		0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	82,411		110,381		119,673
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	-450,406		-448,135		-403,483
Costs and expenses:
Cost of food, merchandise and games revenues	0		0		0
Operating expenses	-450,406		-448,135		-403,483
Selling, general and administrative	0		0		0
Depreciation and amortization	0		0		0
Loss on impairment / retirement of fixed assets, net	0		0		0
Gain on Sale of Other Assets	0		0		0
Total costs and expenses	-450,406		-448,135		-403,483
Operating income	0		0		0
Interest expense (income), net	0		0		0
Net effect of swaps	0		0		0
Loss on early extinguishment of debt	0		0
Unrealized / realized foreign currency gain (loss)	0		0		0
Other (income) expense	0		0		0
(Income) loss from investment in affiliates	57,099		136,038		202,528
Income (loss) before taxes	-57,099		-136,038		-202,528
Provision (benefit) for taxes	0		0		0
Net income (loss)	-57,099		-136,038		-202,528
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	-5,931		-2,756		-369
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	66		-2,848		-135
Other Comprehensive Income (Loss), Net of Tax	-5,865		-5,604		-504
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	($62,964)		($141,642)		($203,032)
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Consolidating_Financial_Inform5

Consolidating Financial Information of Guarantors and Issuers Cash Flows (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
NET CASH (FOR) FROM OPERATING ACTIVITIES	$337,103	$324,457	$285,933
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Investment in joint ventures and affiliates	0	0	0
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Sale of other assets	1,377	15,297	16,058
(Purchase) sale of subsidiary interest	0
Capital expenditures	-166,719	-120,448	-96,232
Net cash from (for) investing activities	-165,342	-105,151	-80,174
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement			-50,450
Proceeds from Issuance of Long-term Debt		630,000
Term debt borrowings	0	630,000	0
Intercompany payables (payments) receipts			0
Intercompany debt payments			0
Note borrowings	450,000	500,000	0
Term debt payments, including early termination penalties	-10,000	-1,142,250	-25,000
Note payments, including amounts paid for early termination	-426,148
Intercompany payables (payments) receipts	0	0
Distributions (paid) received	-159,432	-143,457	-88,813
Payment of debt issuance costs	9,795	23,532	0
Capital (contribution) infusion			0
Exercise of limited partnership unit options	0	52	76
Excess tax benefit from unit-based compensation expense	140	855	1,208
Net cash (for) financing activities	-155,235	-178,332	-162,979
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-2,742	-1,748	526
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	13,784	39,226	43,306
Balance, beginning of period	118,056	78,830	35,524
Balance, end of period	131,840	118,056	78,830
Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
NET CASH (FOR) FROM OPERATING ACTIVITIES	138,669	162,450	189,572
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Investment in joint ventures and affiliates	0	0	0
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Sale of other assets	0	0	1,173
(Purchase) sale of subsidiary interest	-12,024
Capital expenditures	-64,837	-56,254	-33,664
Net cash from (for) investing activities	-76,861	-56,254	-32,491
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement			0
Proceeds from Issuance of Long-term Debt		359,022
Term debt borrowings			0
Intercompany payables (payments) receipts			-28,674
Intercompany debt payments			0
Note borrowings	0	294,897
Term debt payments, including early termination penalties	-5,698	-661,180	-14,468
Note payments, including amounts paid for early termination	0
Intercompany payables (payments) receipts	110,763	112,553
Distributions (paid) received	-161,873	-146,953	-88,939
Payment of debt issuance costs	0	14,535
Capital (contribution) infusion			0
Exercise of limited partnership unit options		0	0
Excess tax benefit from unit-based compensation expense	0	0	0
Net cash (for) financing activities	-56,808	-56,196	-132,081
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	5,000	50,000	25,000
Balance, beginning of period	75,000	25,000	0
Balance, end of period	80,000	75,000	25,000
Co-Issuer Subsidiary (Magnum) [Member]
Condensed Financial Statements, Captions [Line Items]
NET CASH (FOR) FROM OPERATING ACTIVITIES	12,384	22,696	-75,974
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Investment in joint ventures and affiliates	13,794	44,023	-57,817
Intercompany debt receipts			93,845
Payments for (Proceeds from) Other Investing Activities			-60,000
Sale of other assets	0	0	0
(Purchase) sale of subsidiary interest	12,024
Capital expenditures	-270	0	-8
Net cash from (for) investing activities	25,548	44,023	-23,980
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement			0
Proceeds from Issuance of Long-term Debt		256,500
Term debt borrowings			0
Intercompany payables (payments) receipts			108,688
Intercompany debt payments			0
Note borrowings	0	205,103
Term debt payments, including early termination penalties	-4,072	-466,336	-10,212
Note payments, including amounts paid for early termination	0
Intercompany payables (payments) receipts	-37,762	-54,236
Distributions (paid) received	0	3,496	126
Payment of debt issuance costs	0	8,453
Capital (contribution) infusion			0
Exercise of limited partnership unit options		52	76
Excess tax benefit from unit-based compensation expense	140	855	1,208
Net cash (for) financing activities	-41,694	-63,019	99,886
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	-3,762	3,700	-68
Balance, beginning of period	4,144	444	512
Balance, end of period	382	4,144	444
Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
NET CASH (FOR) FROM OPERATING ACTIVITIES	9,772	13,963	39,928
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Investment in joint ventures and affiliates	0		0
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Sale of other assets	0	0	0
(Purchase) sale of subsidiary interest	0
Capital expenditures	-16,072	-9,723	-14,551
Net cash from (for) investing activities	-16,072	-9,723	-14,551
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement			-50,450
Proceeds from Issuance of Long-term Debt		14,478
Term debt borrowings			0
Intercompany payables (payments) receipts			-16,500
Intercompany debt payments			0
Note borrowings	450,000	0
Term debt payments, including early termination penalties	-230	-14,734	-320
Note payments, including amounts paid for early termination	-426,148
Intercompany payables (payments) receipts	5,159	-3,117
Distributions (paid) received	0	-13,173	0
Payment of debt issuance costs	9,795	544
Capital (contribution) infusion			60,000
Exercise of limited partnership unit options		0	0
Excess tax benefit from unit-based compensation expense	0	0	0
Net cash (for) financing activities	18,986	-17,090	-7,270
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-2,742	-1,748	526
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	9,944	-14,598	18,633
Balance, beginning of period	35,575	50,173	31,540
Balance, end of period	45,519	35,575	50,173
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
NET CASH (FOR) FROM OPERATING ACTIVITIES	180,251	138,521	132,407
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Investment in joint ventures and affiliates	-79,456	-55,136	-63,524
Intercompany debt receipts			0
Payments for (Proceeds from) Other Investing Activities			0
Sale of other assets	1,377	15,297	14,885
(Purchase) sale of subsidiary interest	0
Capital expenditures	-85,540	-54,471	-48,009
Net cash from (for) investing activities	-163,619	-94,310	-96,648
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement			0
Proceeds from Issuance of Long-term Debt		0
Term debt borrowings			0
Intercompany payables (payments) receipts			57,827
Intercompany debt payments			-93,845
Note borrowings	0	0
Term debt payments, including early termination penalties	0	0	0
Note payments, including amounts paid for early termination	0
Intercompany payables (payments) receipts	-14,030	-44,087
Distributions (paid) received	0	0	0
Payment of debt issuance costs	0	0
Capital (contribution) infusion			0
Exercise of limited partnership unit options		0	0
Excess tax benefit from unit-based compensation expense	0	0	0
Net cash (for) financing activities	-14,030	-44,087	-36,018
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	2,602	124	-259
Balance, beginning of period	3,337	3,213	3,472
Balance, end of period	5,939	3,337	3,213
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
NET CASH (FOR) FROM OPERATING ACTIVITIES	-3,973	-13,173	0
CASH FLOWS FROM (FOR) INVESTING ACTIVITIES
Investment in joint ventures and affiliates	65,662	11,113	121,341
Intercompany debt receipts			-93,845
Payments for (Proceeds from) Other Investing Activities			60,000
Sale of other assets	0	0	0
(Purchase) sale of subsidiary interest	0
Capital expenditures	0	0	0
Net cash from (for) investing activities	65,662	11,113	87,496
CASH FLOWS FROM (FOR) FINANCING ACTIVITIES
Derivative settlement			0
Proceeds from Issuance of Long-term Debt		0
Term debt borrowings			0
Intercompany payables (payments) receipts			-121,341
Intercompany debt payments			93,845
Note borrowings	0	0
Term debt payments, including early termination penalties	0	0	0
Note payments, including amounts paid for early termination	0
Intercompany payables (payments) receipts	-64,130	-11,113
Distributions (paid) received	2,441	13,173	0
Payment of debt issuance costs	0	0
Capital (contribution) infusion			-60,000
Exercise of limited partnership unit options		0	0
Excess tax benefit from unit-based compensation expense	0	0	0
Net cash (for) financing activities	-61,689	2,060	-87,496
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0	0
CASH AND CASH EQUIVALENTS
Net increase (decrease) for the period	0	0	0
Balance, beginning of period	0	0	0
Balance, end of period	$0	$0	$0