Acquisition of Businesses - Schedule of Recognized Assets Acquired and Liabilities Assumed (Details) CAD in Millions				3 Months Ended	6 Months Ended
	Mar. 11, 2016 USD ($)	Jan. 04, 2016 USD ($)	Jan. 04, 2016 CAD	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Excess purchase price over fair value of net assets acquired (“goodwill”)				$ 187,475,000	$ 187,475,000		$ 185,223,000
Purchase price, net of cash acquired					57,766,000	$ 123,000
Maligne Tours Ltd
Business Acquisition [Line Items]
Cash		$ 14,962,000	CAD 20.9
Inventories		246,000
Prepaid expenses		2,000
Property and equipment		4,133,000
Intangible assets		9,244,000
Total assets acquired		13,625,000
Customer deposits		15,000
Total liabilities assumed		15,000
Total fair value of net assets acquired		13,610,000
Excess purchase price over fair value of net assets acquired (“goodwill”)		$ 1,352,000
CIRI Alaska Tourism Corporation
Business Acquisition [Line Items]
Cash	$ 45,000,000
Working capital receivable	(35,000)			(89,000)
Accounts receivable	8,000
Inventories	921,000
Prepaid expenses	82,000
Property and equipment	43,470,000
Intangible assets	980,000
Total assets acquired	45,461,000
Accounts payable	306,000			$ 100,000	$ 100,000
Accrued liabilities	434,000
Customer deposits	1,952,000
Total liabilities assumed	2,692,000
Total fair value of net assets acquired	42,769,000
Cash acquired	(2,196,000)
Purchase price, net of cash acquired	$ 42,769,000