Consolidating Financial Information of Guarantors and Issuers Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 24, 2018	Dec. 31, 2017	Jun. 25, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 60,119	$ 166,245	$ 101,083	$ 122,716
Receivables	85,379	37,722	83,377
Inventories	47,000	29,719	44,285
Other current assets	40,644	13,297	33,564
Total current assets	233,142	246,983	262,309
Property and equipment (net)	1,618,998	1,585,772	1,608,626
Investment In Park	0	0	0
Goodwill	180,186	183,830	180,370	179,660
Other intangibles, net	36,991	38,064	37,653
Deferred tax asset		0	0
Other Assets	9,899	9,510	20,499
Total Assets	2,079,216	2,064,159	2,109,457
Current Liabilities:
Current maturities of long-term debt	1,875	0	7,500
Accounts payable	49,551	24,621	45,374
Deferred revenue	211,173	86,131	193,338
Accrued interest	9,265	8,124	9,735
Accrued taxes	12,740	43,975	30,352
Accrued salaries, wages and benefits	26,228	18,740	24,955
Self-insurance reserves	25,272	25,107	26,860
Other accrued liabilities	24,395	18,796	16,706
Total current liabilities	360,499	225,494	354,820
Deferred Tax Liability	93,474	74,798	116,797
Derivative Liability	0	8,722	18,166
Other Liabilities	10,982	11,684	12,423
Long-Term Debt:
Revolving credit loans	25,000	0	0
Term debt	722,186	723,788	731,258
Notes	937,146	936,727	936,633
Total long-term debt	1,684,332	1,660,515	1,667,891
Equity	(70,071)	82,946	(60,640)
Total Liabilities and Partners' Equity	2,079,216	2,064,159	2,109,457
June 2014 Notes [Member]
Current Assets:
Cash and cash equivalents	60,119	166,245	101,083	122,716
Receivables	85,379	37,722	83,377
Inventories	47,000	29,719	44,285
Other current assets	40,644	13,297	33,564
Total current assets	233,142	246,983	262,309
Property and equipment (net)	1,618,998	1,585,772	1,608,626
Investment In Park	0	0	0
Goodwill	180,186	183,830	180,370
Other intangibles, net	36,991	38,064	37,653
Deferred tax asset		0	0
Other Assets	9,899	9,510	20,499
Total Assets	2,079,216	2,064,159	2,109,457
Current Liabilities:
Current maturities of long-term debt	1,875		7,500
Accounts payable	49,551	24,621	45,374
Deferred revenue	211,173	86,131	193,338
Accrued interest	9,265	8,124	9,735
Accrued taxes	12,740	43,975	30,352
Accrued salaries, wages and benefits	26,228	18,740	24,955
Self-insurance reserves	25,272	25,107	26,860
Other accrued liabilities	24,395	18,796	16,706
Total current liabilities	360,499	225,494	354,820
Deferred Tax Liability	93,474	74,798	116,797
Derivative Liability		8,722	18,166
Other Liabilities	10,982	11,684	12,423
Long-Term Debt:
Revolving credit loans	25,000
Term debt	722,186	723,788	731,258
Notes	937,146	936,727	936,633
Total long-term debt	1,684,332	1,660,515	1,667,891
Equity	(70,071)	82,946	(60,640)
Total Liabilities and Partners' Equity	2,079,216	2,064,159	2,109,457
June 2014 Notes [Member] | Reportable Legal Entities [Member] | Parent Company [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Receivables	0	0	0
Inventories	0	0	0
Other current assets	398	164	376
Total current assets	398	164	376
Property and equipment (net)	0	0	0
Investment In Park	476,659	588,684	399,003
Goodwill	674	674	674
Other intangibles, net	0	0	0
Deferred tax asset		0	0
Other Assets	74	0	0
Total Assets	477,805	589,522	400,053
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	542,730	497,558	445,741
Deferred revenue	0	0	0
Accrued interest	137	27	346
Accrued taxes	1,453	352	724
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0	0	0
Other accrued liabilities	3,556	3,406	2,982
Total current liabilities	547,876	501,343	449,793
Deferred Tax Liability	0	0	0
Derivative Liability		5,233	10,900
Other Liabilities	0	0	0
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	(70,071)	82,946	(60,640)
Total Liabilities and Partners' Equity	477,805	589,522	400,053
June 2014 Notes [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	21,874	81,582	52,298	58,178
Receivables	869,175	857,205	778,142
Inventories	43,179	27,828	40,597
Other current assets	36,476	10,983	31,465
Total current assets	970,704	977,598	902,502
Property and equipment (net)	1,443,217	1,403,264	1,431,423
Investment In Park	186,540	234,238	157,018
Goodwill	119,605	119,605	119,606
Other intangibles, net	23,629	23,887	24,244
Deferred tax asset		0	0
Other Assets	9,320	9,470	18,392
Total Assets	2,753,015	2,768,062	2,653,185
Current Liabilities:
Current maturities of long-term debt	1,547		6,190
Accounts payable	39,950	18,610	36,237
Deferred revenue	190,223	79,894	173,292
Accrued interest	7,465	6,024	7,491
Accrued taxes	9,571	73,224	18,907
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	13,435	12,542	13,512
Other accrued liabilities	13,155	10,139	8,937
Total current liabilities	275,346	200,433	264,566
Deferred Tax Liability	81,945	81,945	125,350
Derivative Liability		0	0
Other Liabilities	10,143	10,811	11,161
Long-Term Debt:
Revolving credit loans	25,000
Term debt	595,111	596,351	602,725
Notes	491,356	491,571	491,571
Total long-term debt	1,111,467	1,087,922	1,094,296
Equity	1,274,114	1,386,951	1,157,812
Total Liabilities and Partners' Equity	2,753,015	2,768,062	2,653,185
June 2014 Notes [Member] | Eliminations [Member]
Current Assets:
Cash and cash equivalents	(689)	(1,095)	(703)	(1,025)
Receivables	(851,114)	(836,241)	(733,130)
Inventories	0	0	0
Other current assets	(1,952)	(29,601)	(1,358)
Total current assets	(853,755)	(866,937)	(735,191)
Property and equipment (net)	0	0	0
Investment In Park	(1,916,125)	(2,106,694)	(1,630,434)
Goodwill	0	0	0
Other intangibles, net	0	0	0
Deferred tax asset		(20,956)	(22,137)
Other Assets	0	0	0
Total Assets	(2,769,880)	(2,994,587)	(2,387,762)
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	(851,803)	(837,336)	(733,833)
Deferred revenue	0	0	0
Accrued interest	0	0	0
Accrued taxes	(1,952)	(29,601)	(1,358)
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0		0
Other accrued liabilities	0	0	0
Total current liabilities	(853,755)	(866,937)	(735,191)
Deferred Tax Liability	0	(20,956)	(22,137)
Derivative Liability		0	0
Other Liabilities	0	0	0
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	(1,916,125)	(2,106,694)	(1,630,434)
Total Liabilities and Partners' Equity	(2,769,880)	(2,994,587)	(2,387,762)
June 2014 Notes [Member] | Co-Issuer Subsidiary (Magnum) [Member] | Reportable Legal Entities [Member] | Subsidiary Issuer [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Receivables	1,198	1,184	1,285
Inventories	0	0	0
Other current assets	3,293	28,297	374
Total current assets	4,491	29,481	1,659
Property and equipment (net)	819	835	851
Investment In Park	1,009,725	1,045,640	866,792
Goodwill	0	0	0
Other intangibles, net	0	0	0
Deferred tax asset		20,956	22,137
Other Assets	467	0	2,000
Total Assets	1,015,502	1,096,912	893,439
Current Liabilities:
Current maturities of long-term debt	328		1,310
Accounts payable	313,605	344,410	292,715
Deferred revenue	0	0	0
Accrued interest	92	18	230
Accrued taxes	0	0	12,079
Accrued salaries, wages and benefits	23,837	17,498	22,918
Self-insurance reserves	10,355	10,947	11,900
Other accrued liabilities	7,014	5,094	3,979
Total current liabilities	355,231	377,967	345,131
Deferred Tax Liability	22	0	0
Derivative Liability		3,489	7,266
Other Liabilities	839	873	1,262
Long-Term Debt:
Revolving credit loans	0
Term debt	127,075	127,437	128,533
Notes	0	0	0
Total long-term debt	127,075	127,437	128,533
Equity	532,335	587,146	411,247
Total Liabilities and Partners' Equity	1,015,502	1,096,912	893,439
June 2014 Notes [Member] | Co-Issuer Subsidiary (Cedar Canada) [Member] | Reportable Legal Entities [Member] | Subsidiary Issuer [Member]
Current Assets:
Cash and cash equivalents	38,934	85,758	49,488	65,563
Receivables	66,120	15,574	37,080
Inventories	3,821	1,891	3,688
Other current assets	2,429	3,454	2,707
Total current assets	111,304	106,677	92,963
Property and equipment (net)	174,962	181,673	176,352
Investment In Park	243,201	238,132	207,621
Goodwill	59,907	63,551	60,090
Other intangibles, net	13,362	14,177	13,409
Deferred tax asset		0	0
Other Assets	38	40	107
Total Assets	602,774	604,250	550,542
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	5,069	1,379	4,514
Deferred revenue	20,950	6,237	20,046
Accrued interest	1,571	2,055	1,668
Accrued taxes	3,668	0	0
Accrued salaries, wages and benefits	2,391	1,242	2,037
Self-insurance reserves	1,482	1,618	1,448
Other accrued liabilities	670	157	808
Total current liabilities	35,801	12,688	30,521
Deferred Tax Liability	11,507	13,809	13,584
Derivative Liability		0	0
Other Liabilities	0	0	0
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	445,790	445,156	445,062
Total long-term debt	445,790	445,156	445,062
Equity	109,676	132,597	61,375
Total Liabilities and Partners' Equity	602,774	604,250	550,542
April 2017 Notes [Member] | Reportable Legal Entities [Member] | Parent Company [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Receivables	0	0	0
Inventories	0	0	0
Other current assets	398	164	376
Total current assets	398	164	376
Property and equipment (net)	0	0	0
Investment In Park	476,659	588,684	399,003
Goodwill	674	674	674
Other intangibles, net	0	0	0
Deferred tax asset		0	0
Other Assets	74	0	0
Total Assets	477,805	589,522	400,053
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	542,730	497,558	445,741
Deferred revenue	0	0	0
Accrued interest	137	27	346
Accrued taxes	1,453	352	724
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0	0	0
Other accrued liabilities	3,556	3,406	2,982
Total current liabilities	547,876	501,343	449,793
Deferred Tax Liability	0	0	0
Derivative Liability		5,233	10,900
Other Liabilities	0	0	0
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	(70,071)	82,946	(60,640)
Total Liabilities and Partners' Equity	477,805	589,522	400,053
April 2017 Notes [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	2,860	1,152	4,417	353
Receivables	813,742	831,075	723,619
Inventories	7,836	5,300	7,268
Other current assets	5,877	1,642	5,936
Total current assets	830,315	839,169	741,240
Property and equipment (net)	1,443,217	1,403,264	1,431,423
Investment In Park	186,539	234,237	157,018
Goodwill	111,217	111,218	111,218
Other intangibles, net	23,629	23,887	24,244
Deferred tax asset		0	0
Other Assets	9,069	9,068	17,408
Total Assets	2,603,986	2,620,843	2,482,551
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	6,557	5,038	6,871
Deferred revenue	48,951	20,587	48,762
Accrued interest	0	0	0
Accrued taxes	2,056	67,048	11,289
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	2,087	2,386	2,227
Other accrued liabilities	4,164	4,490	2,680
Total current liabilities	63,815	99,549	71,829
Deferred Tax Liability	81,945	81,945	125,350
Derivative Liability		0	0
Other Liabilities	10,056	10,691	10,945
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	2,448,170	2,428,658	2,274,427
Total Liabilities and Partners' Equity	2,603,986	2,620,843	2,482,551
April 2017 Notes [Member] | Eliminations [Member]
Current Assets:
Cash and cash equivalents	(689)	(1,095)	(703)	(1,025)
Receivables	(851,114)	(836,241)	(733,130)
Inventories	0	0	0
Other current assets	(1,952)	(29,601)	(1,358)
Total current assets	(853,755)	(866,937)	(735,191)
Property and equipment (net)	0	0	0
Investment In Park	(3,381,080)	(3,499,454)	(2,977,436)
Goodwill	0	0	0
Other intangibles, net	0	0	0
Deferred tax asset		(20,956)	(22,137)
Other Assets	0	0	0
Total Assets	(4,234,835)	(4,387,347)	(3,734,764)
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	(851,803)	(837,336)	(733,833)
Deferred revenue	0	0	0
Accrued interest	0	0	0
Accrued taxes	(1,952)	(29,601)	(1,358)
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	0	0	0
Other accrued liabilities	0	0	0
Total current liabilities	(853,755)	(866,937)	(735,191)
Deferred Tax Liability	0	(20,956)	(22,137)
Derivative Liability		0	0
Other Liabilities	0	0	0
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	0	0	0
Total long-term debt	0	0	0
Equity	(3,381,080)	(3,499,454)	(2,977,436)
Total Liabilities and Partners' Equity	(4,234,835)	(4,387,347)	(3,734,764)
April 2017 Notes [Member] | Co-Issuer Subsidiary (Magnum) [Member] | Reportable Legal Entities [Member] | Subsidiary Issuer [Member]
Current Assets:
Cash and cash equivalents	0	0	0	0
Receivables	1,198	1,184	1,285
Inventories	0	0	0
Other current assets	3,293	28,297	374
Total current assets	4,491	29,481	1,659
Property and equipment (net)	819	835	851
Investment In Park	1,009,725	1,045,640	866,792
Goodwill	0	0	0
Other intangibles, net	0	0	0
Deferred tax asset		20,956	22,137
Other Assets	467	0	2,000
Total Assets	1,015,502	1,096,912	893,439
Current Liabilities:
Current maturities of long-term debt	328		1,310
Accounts payable	313,605	344,410	292,715
Deferred revenue	0	0	0
Accrued interest	92	18	230
Accrued taxes	0	0	12,079
Accrued salaries, wages and benefits	23,837	17,498	22,918
Self-insurance reserves	10,355	10,947	11,900
Other accrued liabilities	7,014	5,094	3,979
Total current liabilities	355,231	377,967	345,131
Deferred Tax Liability	22	0	0
Derivative Liability		3,489	7,266
Other Liabilities	839	873	1,262
Long-Term Debt:
Revolving credit loans	0
Term debt	127,075	127,437	128,533
Notes	0	0	0
Total long-term debt	127,075	127,437	128,533
Equity	532,335	587,146	411,247
Total Liabilities and Partners' Equity	1,015,502	1,096,912	893,439
April 2017 Notes [Member] | Co-Issuer Subsidiary (Cedar Canada) [Member] | Reportable Legal Entities [Member] | Subsidiary Issuer [Member]
Current Assets:
Cash and cash equivalents	38,934	85,758	49,488	65,563
Receivables	66,120	15,574	37,080
Inventories	3,821	1,891	3,688
Other current assets	2,429	3,454	2,707
Total current assets	111,304	106,677	92,963
Property and equipment (net)	174,962	181,673	176,352
Investment In Park	243,201	238,132	207,621
Goodwill	59,907	63,551	60,090
Other intangibles, net	13,362	14,177	13,409
Deferred tax asset		0	0
Other Assets	38	40	107
Total Assets	602,774	604,250	550,542
Current Liabilities:
Current maturities of long-term debt	0		0
Accounts payable	5,069	1,379	4,514
Deferred revenue	20,950	6,237	20,046
Accrued interest	1,571	2,055	1,668
Accrued taxes	3,668	0	0
Accrued salaries, wages and benefits	2,391	1,242	2,037
Self-insurance reserves	1,482	1,618	1,448
Other accrued liabilities	670	157	808
Total current liabilities	35,801	12,688	30,521
Deferred Tax Liability	11,507	13,809	13,584
Derivative Liability		0	0
Other Liabilities	0	0	0
Long-Term Debt:
Revolving credit loans	0
Term debt	0	0	0
Notes	445,790	445,156	445,062
Total long-term debt	445,790	445,156	445,062
Equity	109,676	132,597	61,375
Total Liabilities and Partners' Equity	602,774	604,250	550,542
April 2017 Notes [Member] | Co-Issuer Subsidiary (Millennium) [Member] | Reportable Legal Entities [Member] | Subsidiary Issuer [Member]
Current Assets:
Cash and cash equivalents	19,014	80,430	47,881	$ 57,825
Receivables	55,433	26,130	54,523
Inventories	35,343	22,528	33,329
Other current assets	30,599	9,341	25,529
Total current assets	140,389	138,429	161,262
Property and equipment (net)	0	0	0
Investment In Park	1,464,956	1,392,761	1,347,002
Goodwill	8,388	8,387	8,388
Other intangibles, net	0	0	0
Deferred tax asset		0	0
Other Assets	251	402	984
Total Assets	1,613,984	1,539,979	1,517,636
Current Liabilities:
Current maturities of long-term debt	1,547		6,190
Accounts payable	33,393	13,572	29,366
Deferred revenue	141,272	59,307	124,530
Accrued interest	7,465	6,024	7,491
Accrued taxes	7,515	6,176	7,618
Accrued salaries, wages and benefits	0	0	0
Self-insurance reserves	11,348	10,156	11,285
Other accrued liabilities	8,991	5,649	6,257
Total current liabilities	211,531	100,884	192,737
Deferred Tax Liability	0	0	0
Derivative Liability		0	0
Other Liabilities	87	120	216
Long-Term Debt:
Revolving credit loans	25,000
Term debt	595,111	596,351	602,725
Notes	491,356	491,571	491,571
Total long-term debt	1,111,467	1,087,922	1,094,296
Equity	290,899	351,053	230,387
Total Liabilities and Partners' Equity	$ 1,613,984	$ 1,539,979	$ 1,517,636