Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedule of Foreign Currency Gains and Losses

Foreign currency (gains) losses for the periods presented were as follows:

	Years Ended December 31,
(In thousands)	2019			2018			2017
(Gain) loss on foreign currency related to re-measurement of U.S. dollar denominated debt held in Canada	$	(22,307	)	$	37,724		$	(30,912	)
Loss (gain) on other transactions	1,200			(1,470		)	1,826
(Gain) loss on foreign currency	$	(21,107	)	$	36,254		$	(29,086	)

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

The unit amounts used in calculating the basic and diluted earnings per limited partner unit for the years ended December 31, 2019, 2018 and 2017 are as follows:

	Years Ended December 31,
(In thousands, except per unit amounts)	2019		2018		2017
Basic weighted average units outstanding	56,349		56,212		56,061
Effect of dilutive units:
Deferred units (Note 9)	50		48		42
Performance units (Note 9)	118		135		188
Restricted units (Note 9)	275		312		324
Unit options (Note 9)	129		153		185
Diluted weighted average units outstanding	56,921		56,860		56,800
Net income per unit - basic	$	3.06	$	2.25	$	3.84
Net income per unit - diluted	$	3.03	$	2.23	$	3.79