Business Segments (Details 2) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017 USD ($) park	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) park	Jun. 30, 2016 USD ($)
Business segment information by geographical areas
Number of parks owned or operated \| park	20		20
Long-lived assets	$ 2,249,218	$ 2,213,703	$ 2,249,218	$ 2,213,703
Revenues	422,372	407,066	521,900	522,485
Income before income taxes	107,685	121,159	12,546	50,364
Domestic [Member]
Business segment information by geographical areas
Long-lived assets	2,146,867	2,127,713	2,146,867	2,127,713
Revenues			479,515	480,182
Income before income taxes			11,184	45,493
Foreign [Member]
Business segment information by geographical areas
Long-lived assets	$ 102,351	$ 85,990	102,351	85,990
Revenues			42,385	42,303
Income before income taxes			$ 1,362	$ 4,871
Mexico
Business segment information by geographical areas
Number of parks owned or operated \| park	2		2
Canada
Business segment information by geographical areas
Number of parks owned or operated \| park	1		1

Represents the number of parks owned or operated by the reporting entity as of the balance sheet date.

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- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 41
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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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