Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	$ 34,019	$ 31,107
Less accumulated depreciation	20,564	18,021
Total property and equipment, net	13,455	13,086
Depreciation	4,800	4,400	$ 3,900
Housekeeping and Dietary equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	21,136	19,445
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	11,750	10,528
Other
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	$ 1,133	$ 1,134