Loss on Sale of Business and Impairment of Assets (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
	Jun. 03, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Goodwill [Line Items]
Impairment of goodwill		$ 0		$ 0	$ 3,097	$ 0
Loss on sale of business		(4,641)		0	(4,641)	0
Long-lived asset		1,214,277			1,214,277		$ 1,138,370
Impairment of long-lived assets		0		$ 0	7,304	$ 0
Goodwill		159,197			159,197		$ 168,996
SaaS for Vacation Rentals
Goodwill [Line Items]
Impairment of long lived assets			$ 7,300
Impairment of goodwill			3,100		3,100
Loss on sale of business	$ (4,600)	(4,600)
Impairment of long-lived assets					7,300
Goodwill			$ 6,400
Intangible Assets | SaaS for Vacation Rentals
Goodwill [Line Items]
Long-lived asset		4,300			4,300
Operating Lease Right-of-use Asset | SaaS for Vacation Rentals
Goodwill [Line Items]
Long-lived asset		1,700			1,700
Property, Plant and Equipment | SaaS for Vacation Rentals
Goodwill [Line Items]
Long-lived asset		$ 1,300			$ 1,300