Consolidating Financial Information of Guarantors and Issuers Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Condensed Financial Statements, Captions [Line Items]
Net revenues	$ 361,620	$ 357,606	$ 403,419	$ 385,804	$ 1,086,069	$ 1,102,917
Costs and expenses:
Cost of food, merchandise and games revenues	31,053	32,486	36,090	36,573	94,565	97,407
Operating expenses	141,284	146,236	217,941	217,521	451,823	458,266
Selling, general and administrative	45,767	44,511	66,806	62,495	142,622	144,773
Depreciation and amortization	46,032	47,909	50,818	51,988	125,136	130,416
Loss (gain) on impairment / retirement of fixed assets, net	29	(862)	629	(770)	31,735	10,389
Gain on sale of other assets	0	0	0	0	(6,625)	0
Total costs and expenses	264,165	270,280	372,284	367,807	839,256	841,251
Operating income	97,455	87,326	31,135	17,997	246,813	261,666
Interest Income (Expense), Net	25,792	30,234	51,515	57,021	105,045	130,840
Net effect of swaps	(2,273)	(173)	6,938	(1,143)	6,589	(14,717)
Loss on early debt extinguishment	0	0	34,573	0	34,573	0
Unrealized / realized foreign currency (gain) loss	14,886	9,301	23,844	1,109	13,737	14,863
Other Income Expense	0	0	0	0	0	(218)
(Income) loss from investment in affiliates	0	0	0	0	0	0
Income (loss) before taxes	59,050	47,964	(85,735)	(38,990)	86,869	130,898
Provision (benefit) for taxes	11,660	11,381	(23,999)	(10,158)	17,917	13,790
Net income (loss)	47,390	36,583	(61,736)	(28,832)	68,952	117,108
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	1,592	481	1,893	(688)	2,950	733
Unrealized income (loss) on cash flow hedging derivatives	1,679	(2,370)	10,564	(2,031)	12,735	(3,854)
Other comprehensive income (loss), (net of tax)	3,271	(1,889)	12,457	(2,719)	15,685	(3,121)
Total Comprehensive Income (Loss)	50,661	34,694	(49,279)	(31,551)	84,637	113,987
Cedar Fair L.P. (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	43,925	43,745	48,243	45,201	148,757	150,783
Costs and expenses:
Cost of food, merchandise and games revenues	0	0	0	0	0	0
Operating expenses	1,408	1,438	2,831	2,773	5,438	5,341
Selling, general and administrative	1,222	1,656	2,514	2,988	6,021	6,309
Depreciation and amortization	12,891	13,531	13,366	14,227	36,799	38,843
Loss (gain) on impairment / retirement of fixed assets, net	0	(861)	36	(779)	25,950	15
Gain on sale of other assets					0
Total costs and expenses	15,521	15,764	18,747	19,209	74,208	50,508
Operating income	28,404	27,981	29,496	25,992	74,549	100,275
Interest Income (Expense), Net	10,210	13,067	20,722	24,225	45,022	61,742
Net effect of swaps	(1,378)	(104)	4,257	69	4,050	(9,027)
Loss on early debt extinguishment			21,175		21,175
Unrealized / realized foreign currency (gain) loss	0	0	0	0	0	0
Other Income Expense	187	188	375	375	749	533
(Income) loss from investment in affiliates	(30,875)	(24,476)	41,221	26,015	(74,816)	(80,137)
Income (loss) before taxes	50,260	39,306	(58,254)	(24,692)	78,369	127,164
Provision (benefit) for taxes	2,870	2,723	3,482	4,140	9,417	10,056
Net income (loss)	47,390	36,583	(61,736)	(28,832)	68,952	117,108
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	1,592	481	1,893	(688)	2,950	733
Unrealized income (loss) on cash flow hedging derivatives	1,679	(2,370)	10,564	(2,031)	12,735	(3,854)
Other comprehensive income (loss), (net of tax)	3,271	(1,889)	12,457	(2,719)	15,685	(3,121)
Total Comprehensive Income (Loss)	50,661	34,694	(49,279)	(31,551)	84,637	113,987
Guarantor Subsidiaries Co Issuer Subsidiary Magnum [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	85,358	77,510	93,729	80,087	271,778	267,882
Costs and expenses:
Cost of food, merchandise and games revenues	0	0	0	0	0	0
Operating expenses	52,246	52,584	73,852	73,020	177,188	175,593
Selling, general and administrative	26,888	24,525	43,501	38,221	91,895	88,725
Depreciation and amortization	9	9	18	18	40	42
Loss (gain) on impairment / retirement of fixed assets, net	0	0	0	0	0	0
Gain on sale of other assets					0
Total costs and expenses	79,143	77,118	117,371	111,259	269,123	264,360
Operating income	6,215	392	(23,642)	(31,172)	2,655	3,522
Interest Income (Expense), Net	7,246	8,084	14,923	14,699	29,552	24,419
Net effect of swaps	(895)	(69)	2,681	263	2,539	(121)
Loss on early debt extinguishment			12,781		12,781
Unrealized / realized foreign currency (gain) loss	0	0	0	0	0	0
Other Income Expense	(2,128)	(2,041)	(4,516)	(5,076)	(8,947)	(9,873)
(Income) loss from investment in affiliates	(15,540)	(16,973)	20,100	6,477	(52,527)	(28,421)
Income (loss) before taxes	17,532	11,391	(69,611)	(47,535)	19,257	17,518
Provision (benefit) for taxes	684	(1,876)	(16,981)	(13,548)	(13,289)	(26,630)
Net income (loss)	16,848	13,267	(52,630)	(33,987)	32,546	44,148
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	0	0	0	0	0	0
Unrealized income (loss) on cash flow hedging derivatives	503	(775)	3,038	(677)	3,635	(4,884)
Other comprehensive income (loss), (net of tax)	503	(775)	3,038	(677)	3,635	(4,884)
Total Comprehensive Income (Loss)	17,351	12,492	(49,592)	(34,664)	36,181	39,264
Co-Issuer Subsidiary (Cedar Canada) [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	34,954	41,841	35,243	42,107	133,554	138,595
Costs and expenses:
Cost of food, merchandise and games revenues	2,994	3,541	2,994	3,541	9,769	10,743
Operating expenses	15,586	15,935	21,527	21,592	47,798	47,795
Selling, general and administrative	3,868	4,295	4,579	5,055	10,659	11,892
Depreciation and amortization	6,818	6,985	6,818	6,985	18,032	17,976
Loss (gain) on impairment / retirement of fixed assets, net	0	(1)	478	9	475	(52)
Gain on sale of other assets					0
Total costs and expenses	29,266	30,755	36,396	37,182	86,733	88,354
Operating income	5,688	11,086	(1,153)	4,925	46,821	50,241
Interest Income (Expense), Net	9,843	10,598	19,607	21,001	39,476	48,119
Net effect of swaps	0	0	0	(1,475)	0	(5,569)
Loss on early debt extinguishment			617		617
Unrealized / realized foreign currency (gain) loss	14,886	9,301	23,844	1,109	13,737	14,863
Other Income Expense	583	512	1,383	709	2,694	1,602
(Income) loss from investment in affiliates	(8,232)	(6,955)	(4,712)	(3,541)	(15,768)	(6,557)
Income (loss) before taxes	(11,392)	(2,370)	(41,892)	(12,878)	6,065	(2,217)
Provision (benefit) for taxes	(6,732)	(1,322)	(15,986)	(3,656)	(8,917)	7,042
Net income (loss)	(4,660)	(1,048)	(25,906)	(9,222)	14,982	(9,259)
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	1,592	481	1,893	(688)	2,950	733
Unrealized income (loss) on cash flow hedging derivatives	0	0	0	21	0	21
Other comprehensive income (loss), (net of tax)	1,592	481	1,893	(667)	2,950	754
Total Comprehensive Income (Loss)	(3,068)	(567)	(24,013)	(9,889)	17,932	(8,505)
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	326,473	315,637	367,983	343,569	952,082	963,915
Costs and expenses:
Cost of food, merchandise and games revenues	28,059	28,945	33,096	33,032	84,796	86,664
Operating expenses	201,134	197,406	261,510	245,296	641,501	647,795
Selling, general and administrative	13,789	14,035	16,212	16,231	34,047	37,847
Depreciation and amortization	26,314	27,384	30,616	30,758	70,265	73,555
Loss (gain) on impairment / retirement of fixed assets, net	29	0	115	0	5,310	10,426
Gain on sale of other assets					(6,625)
Total costs and expenses	269,325	267,770	341,549	325,317	829,294	856,287
Operating income	57,148	47,867	26,434	18,252	122,788	107,628
Interest Income (Expense), Net	(1,507)	(1,515)	(3,737)	(2,904)	(9,005)	(3,440)
Net effect of swaps	0	0	0	0	0	0
Loss on early debt extinguishment			0		0
Unrealized / realized foreign currency (gain) loss	0	0	0	0	0	0
Other Income Expense	1,358	1,341	2,758	3,992	5,504	7,520
(Income) loss from investment in affiliates	4,649	(260)	25,876	6,803	(12,687)	6,067
Income (loss) before taxes	52,648	48,301	1,537	10,361	138,976	97,481
Provision (benefit) for taxes	14,838	11,856	5,486	2,906	30,706	23,322
Net income (loss)	37,810	36,445	(3,949)	7,455	108,270	74,159
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	0	0	0	0	0	0
Unrealized income (loss) on cash flow hedging derivatives	0	0	0	0	0	0
Other comprehensive income (loss), (net of tax)	0	0	0	0	0	0
Total Comprehensive Income (Loss)	37,810	36,445	(3,949)	7,455	108,270	74,159
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues	(129,090)	(121,127)	(141,779)	(125,160)	(420,102)	(418,258)
Costs and expenses:
Cost of food, merchandise and games revenues	0	0	0	0	0	0
Operating expenses	(129,090)	(121,127)	(141,779)	(125,160)	(420,102)	(418,258)
Selling, general and administrative	0	0	0	0	0	0
Depreciation and amortization	0	0	0	0	0	0
Loss (gain) on impairment / retirement of fixed assets, net	0	0	0	0	0	0
Gain on sale of other assets					0
Total costs and expenses	(129,090)	(121,127)	(141,779)	(125,160)	(420,102)	(418,258)
Operating income	0	0	0	0	0	0
Interest Income (Expense), Net	0	0	0	0	0	0
Net effect of swaps	0	0	0	0	0	0
Loss on early debt extinguishment			0		0
Unrealized / realized foreign currency (gain) loss	0	0	0	0	0	0
Other Income Expense	0	0	0	0	0	0
(Income) loss from investment in affiliates	49,998	48,664	(82,485)	(35,754)	155,798	109,048
Income (loss) before taxes	(49,998)	(48,664)	82,485	35,754	(155,798)	(109,048)
Provision (benefit) for taxes	0	0	0	0	0	0
Net income (loss)	(49,998)	(48,664)	82,485	35,754	(155,798)	(109,048)
Other comprehensive income (loss), (net of tax):
Cumulative foreign currency translation adjustment	(1,592)	(481)	(1,893)	688	(2,950)	(733)
Unrealized income (loss) on cash flow hedging derivatives	(503)	775	(3,038)	656	(3,635)	4,863
Other comprehensive income (loss), (net of tax)	(2,095)	294	(4,931)	1,344	(6,585)	4,130
Total Comprehensive Income (Loss)	$ (52,093)	$ (48,370)	$ 77,554	$ 37,098	$ (162,383)	$ (104,918)