Consolidating Financial Information of Guarantors and Issuers Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jul. 01, 2012
Current Assets:
Cash and cash equivalents	$ 40,134	$ 118,056	$ 43,628	$ 43,628	$ 78,830	$ 35,929
Receivables	66,561	21,333	67,199
Inventories	45,571	26,080	45,452
Current deferred tax asset	22,900	9,675	28,302
Other current assets	31,398	11,353	33,888
Total current assets	206,564	186,497	218,469
Property and equipment (net)	1,557,164	1,505,763	1,550,901
Investment In Park	0	0	0
Goodwill	237,650	238,089	239,480		246,221
Other intangibes, net	39,509	39,471	39,719
Deferred Tax Asset	0	0	0
Other Assets	44,909	44,807	32,326
Assets	2,085,796	2,014,627	2,080,895
Current Liabilities:
Current maturities of long-term debt	3,025	0	6,300
Accounts payable	37,503	13,222	34,339
Deferred revenue	133,797	44,521	132,365
Accrued interest	12,516	23,201	23,944
Accrued taxes	7,253	19,481	10,021
Accrued salaries, wages and benefits	35,640	29,200	29,896
Self-insurance reserves	23,659	23,653	24,592
Other accrued liabilities	9,405	5,521	8,789
Total current liabilities	262,798	158,799	270,246
Deferred Tax Liability	157,046	158,113	154,292
Derivative Liability	30,110	26,662	26,772
Other Liabilities	7,402	11,290	8,796
Long-term Line of Credit, Noncurrent	39,000	0	58,000
Long-Term Debt:
Term debt	615,825	618,850	622,125
Notes	950,000	901,782	901,431
Total long-term debt	1,604,825	1,520,632	1,581,556
Equity	23,615	139,131	39,233
Total Partners' Equity and Liabilities	2,085,796	2,014,627	2,080,895
Cedar Fair L.P. (Parent) [Member]
Current Assets:
Cash and cash equivalents	0	75,000	0		25,000	0
Receivables	59	6	250
Inventories	0	0	0
Current deferred tax asset	0	0	0
Other current assets	691	599	620
Total current assets	750	75,605	870
Property and equipment (net)	471,252	447,724	463,783
Investment In Park	466,213	514,948	447,080
Goodwill	9,061	9,061	9,061
Other intangibes, net	0	0	0
Deferred Tax Asset	0	0	0
Other Assets	11,680	25,210	13,605
Assets	958,956	1,072,548	934,399
Current Liabilities:
Current maturities of long-term debt	1,724		3,590
Accounts payable	218,225	259,850	155,522
Deferred revenue	0	0	0
Accrued interest	6,422	4,637	5,189
Accrued taxes	6,054	4,609	6,534
Accrued salaries, wages and benefits	0	0	1
Self-insurance reserves	0	0	0
Other accrued liabilities	376	1,146	860
Total current liabilities	232,801	270,242	171,696
Deferred Tax Liability	0	0	0
Derivative Liability	17,700	15,610	16,039
Other Liabilities	0	0	0
Long-term Line of Credit, Noncurrent	39,000		58,000
Long-Term Debt:
Term debt	350,943	352,668	354,534
Notes	294,897	294,897	294,897
Total long-term debt	684,840	647,565	707,431
Equity	23,615	139,131	39,233
Total Partners' Equity and Liabilities	958,956	1,072,548	934,399
Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Current Assets:
Cash and cash equivalents	0	4,144	0		444	0
Receivables	104,035	115,972	86,025
Inventories	5,732	1,968	4,639
Current deferred tax asset	18,655	5,430	23,822
Other current assets	14,115	4,443	11,440
Total current assets	142,537	131,957	125,926
Property and equipment (net)	8,206	976	994
Investment In Park	767,266	796,735	735,017
Goodwill	0	0	0
Other intangibes, net	0	0	0
Deferred Tax Asset	32,025	31,122	34,028
Other Assets	21,649	10,002	9,382
Assets	971,683	970,792	905,347
Current Liabilities:
Current maturities of long-term debt	1,231		2,565
Accounts payable	233,203	188,818	208,924
Deferred revenue	636	0	0
Accrued interest	4,251	3,223	3,563
Accrued taxes	1,196	0	458
Accrued salaries, wages and benefits	23,850	21,596	18,642
Self-insurance reserves	5,534	5,757	5,535
Other accrued liabilities	5,554	2,993	4,421
Total current liabilities	275,455	222,387	244,108
Deferred Tax Liability	0	0	0
Derivative Liability	12,410	11,052	10,733
Other Liabilities	4,039	7,858	5,296
Long-term Line of Credit, Noncurrent	0		0
Long-Term Debt:
Term debt	250,730	251,961	253,294
Notes	205,103	205,103	205,103
Total long-term debt	455,833	457,064	458,397
Equity	223,946	272,431	186,813
Total Partners' Equity and Liabilities	971,683	970,792	905,347
Co-Issuer Subsidiary (Cedar Canada) [Member]
Current Assets:
Cash and cash equivalents	19,425	35,575	21,745		50,173	13,974
Receivables	93,286	67,829	80,435
Inventories	4,091	1,898	4,182
Current deferred tax asset	800	800	816
Other current assets	5,974	14,266	2,066
Total current assets	123,576	120,368	109,244
Property and equipment (net)	247,632	243,208	250,249
Investment In Park	149,180	142,668	129,942
Goodwill	117,371	117,810	119,201
Other intangibes, net	16,639	16,683	16,880
Deferred Tax Asset	0	0	0
Other Assets	9,276	6,657	7,112
Assets	663,674	647,394	632,628
Current Liabilities:
Current maturities of long-term debt	70		145
Accounts payable	15,070	17,632	7,971
Deferred revenue	15,824	2,815	18,719
Accrued interest	1,843	15,341	15,192
Accrued taxes	0	0	181
Accrued salaries, wages and benefits	2,303	1,101	2,153
Self-insurance reserves	1,772	1,742	1,727
Other accrued liabilities	1,095	181	715
Total current liabilities	37,977	38,812	46,803
Deferred Tax Liability	57,540	57,704	61,544
Derivative Liability	0	0	0
Other Liabilities	0	0	0
Long-term Line of Credit, Noncurrent	0		0
Long-Term Debt:
Term debt	14,152	14,221	14,297
Notes	450,000	401,782	401,431
Total long-term debt	464,152	416,003	415,728
Equity	104,005	134,875	108,553
Total Partners' Equity and Liabilities	663,674	647,394	632,628
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	29,986	3,337	27,904		3,213	27,476
Receivables	571,632	552,633	517,925
Inventories	35,748	22,214	36,631
Current deferred tax asset	3,445	3,445	3,664
Other current assets	13,500	7,764	19,762
Total current assets	654,311	589,393	605,886
Property and equipment (net)	830,074	813,855	835,875
Investment In Park	32,308	63,948	38,992
Goodwill	111,218	111,218	111,218
Other intangibes, net	22,870	22,788	22,839
Deferred Tax Asset	117	117	90
Other Assets	2,304	2,938	2,227
Assets	1,653,202	1,604,257	1,617,127
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	282,733	262,029	285,379
Deferred revenue	117,337	41,706	113,646
Accrued interest	0	0	0
Accrued taxes	2,885	30,591	2,848
Accrued salaries, wages and benefits	9,487	6,503	9,100
Self-insurance reserves	16,353	16,154	17,330
Other accrued liabilities	2,380	1,201	2,793
Total current liabilities	431,175	358,184	431,096
Deferred Tax Liability	131,648	131,648	126,866
Derivative Liability	0	0	0
Other Liabilities	3,363	3,432	3,500
Long-term Line of Credit, Noncurrent	0		0
Long-Term Debt:
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	1,087,016	1,110,993	1,055,665
Total Partners' Equity and Liabilities	1,653,202	1,604,257	1,617,127
Eliminations [Member]
Current Assets:
Cash and cash equivalents	(9,277)	0	(6,021)	(6,021)	0	(5,521)
Receivables	(702,451)	(715,107)	(617,436)
Inventories	0	0	0
Current deferred tax asset	0	0	0
Other current assets	(2,882)	(15,719)	0
Total current assets	(714,610)	(730,826)	(623,457)
Property and equipment (net)	0	0	0
Investment In Park	(1,414,967)	(1,518,299)	(1,351,031)
Goodwill	0	0	0
Other intangibes, net	0	0	0
Deferred Tax Asset	(32,142)	(31,239)	(34,118)
Other Assets	0	0	0
Assets	(2,161,719)	(2,280,364)	(2,008,606)
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	(711,728)	(715,107)	(623,457)
Deferred revenue	0	0	0
Accrued interest	0	0	0
Accrued taxes	(2,882)	(15,719)	0
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0	0	0
Other accrued liabilities	0	0	0
Total current liabilities	(714,610)	(730,826)	(623,457)
Deferred Tax Liability	(32,142)	(31,239)	(34,118)
Derivative Liability	0	0	0
Other Liabilities	0	0	0
Long-term Line of Credit, Noncurrent	0		0
Long-Term Debt:
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	(1,414,967)	(1,518,299)	(1,351,031)
Total Partners' Equity and Liabilities	$ (2,161,719)	$ (2,280,364)	$ (2,008,606)