XML 70 R54.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financing Arrangements (Details) - USD ($)
$ in Thousands
Jan. 30, 2015
Dec. 31, 2017
Dec. 31, 2016
Financing Arrangements      
Sale leaseback obligation   $ 47,714 $ 47,586
Beverly Property Owner LLC | Sale leaseback obligation | Land and buildings      
Financing Arrangements      
Purchase price $ 48,900    
Lease term 22 years    
Sale leaseback obligation   $ 47,700  
Security deposit $ 5,900