Acquisition of Businesses - Narrative (Details) € in Millions, £ in Millions							6 Months Ended
	Nov. 24, 2014 EUR (€)	Nov. 24, 2014 USD ($)	Oct. 07, 2014 USD ($)	Sep. 16, 2014 GBP (£)	Sep. 16, 2014 USD ($)	Jul. 01, 2014 USD ($)	Jun. 30, 2015 USD ($)	Nov. 24, 2014 USD ($)	Jul. 31, 2014 USD ($)
Business Acquisition [Line Items]
Acquisition adjustment for intangibles							$ 700,000
Acquisition adjustment for goodwill							(400,000)
West Glacier, Apgar Village, and other operations
Business Acquisition [Line Items]
Purchase price						$ 16,500,000
Liability for working capital adjustment									$ 300,000
Acquisition adjustment for assets acquired and liabilities assumed							0
Blitz Communication Group Limited
Business Acquisition [Line Items]
Purchase price				£ 15	$ 24,416,000
Acquisition adjustment for property, plant, and equipment							100,000
Acquisition adjustment for intangibles							16,000
Acquisition adjustment for accrued dilapidations							200,000
Acquisition adjustment for deferred taxes							41,000
Acquisition adjustment for goodwill							200,000
Goodwill expected to be tax deductible, term of recognition				15 years	15 years
Intangible assets					$ 8,692,000
Weighted average useful life of intangibles				6 years 10 months 24 days	6 years 10 months 24 days
onPeak LLC
Business Acquisition [Line Items]
Purchase price			$ 42,950,000
Acquisition adjustment for intangibles							200,000
Acquisition adjustment for deferred taxes							38,000
Acquisition adjustment for goodwill							(200,000)
Goodwill expected to be tax deductible, term of recognition			15 years
Intangible assets			$ 14,100,000
Weighted average useful life of intangibles			9 years 10 months 24 days
Escrow deposit			$ 4,100,000
Goodwill deductible			9,300,000
Travel Planners, Inc
Business Acquisition [Line Items]
Purchase price			$ 33,674,000
Acquisition adjustment for intangibles							600,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Payable Due to Tax Election							400,000
Goodwill expected to be tax deductible, term of recognition			15 years
Intangible assets			$ 14,400,000
Weighted average useful life of intangibles			9 years 9 months 18 days
Escrow deposit			$ 8,800,000
Working capital adjustment			(279,000)
Contingent liability			$ 900,000
Acquisition adjustment for accrued liabilities							100,000
N200 Limited and Affiliates
Business Acquisition [Line Items]
Purchase price	€ 9.7	$ 12,068,000
Acquisition adjustment for intangibles							(100,000)
Acquisition adjustment for deferred taxes							(20,000)
Acquisition adjustment for goodwill							(300,000)
Goodwill expected to be tax deductible, term of recognition	15 years	15 years
Intangible assets								$ 3,682,000
Weighted average useful life of intangibles				7 years 4 months 24 days	7 years 4 months 24 days
Working capital adjustment		$ 458,000
Contingent liability | €	€ 1.0
Acquisition adjustment for contingent consideration							100,000
Acquisition adjustment for working capital payable							500,000
Acquisition adjustment for accounts payable							15,000
Acquisition adjustment for accrued liabilities							$ 100,000