Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	$ 58,761		$ 58,761		$ 35,630
Operating lease — right-of-use assets	19,865		19,865
Less accumulated depreciation	29,786		29,786		22,730
Total property and equipment, net	28,975		28,975		12,900
Depreciation	2,400	$ 1,100	7,200	$ 3,700
Housekeeping and Dietary equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	24,562		24,562		22,596
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	12,637		12,637		12,114
Other
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	1,697		1,697		$ 920
Operating lease — right-of-use assets
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,300		$ 3,500