Acquisition of Businesses - Narrative (Details)	3 Months Ended	0 Months Ended	3 Months Ended		0 Months Ended		3 Months Ended	0 Months Ended	3 Months Ended	0 Months Ended	3 Months Ended	0 Months Ended			3 Months Ended
	Mar. 31, 2015 USD ($)	Jul. 01, 2014 West Glacier, Apgar Village, and other operations USD ($)	Mar. 31, 2015 West Glacier, Apgar Village, and other operations USD ($)	Jul. 31, 2014 West Glacier, Apgar Village, and other operations USD ($)	Sep. 16, 2014 Blitz Communication Group Limited USD ($)	Sep. 16, 2014 Blitz Communication Group Limited GBP (£)	Mar. 31, 2015 Blitz Communication Group Limited USD ($)	Oct. 07, 2014 onPeak LLC USD ($)	Mar. 31, 2015 onPeak LLC USD ($)	Oct. 07, 2014 Travel Planners, Inc USD ($)	Mar. 31, 2015 Travel Planners, Inc USD ($)	Nov. 24, 2014 N200 Limited and Affiliates USD ($)	Nov. 24, 2014 N200 Limited and Affiliates EUR (€)	Sep. 16, 2014 N200 Limited and Affiliates	Mar. 31, 2015 N200 Limited and Affiliates USD ($)
Business Acquisition [Line Items]
Purchase price		$ 16,500,000			$ 24,416,000	£ 15,000,000		$ 42,950,000		$ 33,674,000		$ 12,068,000	€ 9,700,000
Liability for working capital adjustment				300,000
Acquisition adjustment for assets acquired and liabilities assumed			0
Acquisition adjustment for property, plant, and equipment							100,000
Acquisition adjustment for intangibles	700,000						16,000		200,000		600,000				(100,000)
Acquisition adjustment for accrued dilapidations							200,000
Acquisition adjustment for deferred taxes							41,000		38,000						(20,000)
Acquisition adjustment for goodwill	(1,000,000)						200,000		(200,000)		(600,000)				(300,000)
Goodwill expected to be tax deductible, term of recognition					15 years	15 years		15 years		15 years		15 years	15 years
Intangible assets					8,692,000			14,100,000		14,400,000		3,682,000
Weighted average useful life of intangibles					6 years 10 months 24 days	6 years 10 months 24 days		9 years 10 months 24 days						7 years 4 months 24 days
Escrow deposit								4,100,000		8,800,000
Goodwill deductible								9,300,000
Working capital adjustment										(279,000)		458,000
Contingent liability										1,300,000			1,000,000
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