Annual report pursuant to Section 13 and 15(d)

Schedule II - Schedule of Valuation and Qualifying Accounts Disclosure (Details)

v3.8.0.1
Schedule II - Schedule of Valuation and Qualifying Accounts Disclosure (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Allowance for Doubtful Accounts [Member]    
Balance at Beginning of Period $ 363 $ 802
Additions (Reductions) Charged to Operations (363) 899
Deductions Other [1] (1,338)
Balance at end of Period 363
Allowance for Notes Receivable [Member]    
Balance at Beginning of Period 1,646 1,626
Additions (Reductions) Charged to Operations 20
Deductions Other [1] (777)
Balance at end of Period 869 1,646
Valuation Allowance, Other Tax Carryforward [Member]    
Balance at Beginning of Period 64,480 56,868
Additions (Reductions) Charged to Operations
Deductions Other [1] (22,315) 7,612
Balance at end of Period $ 42,165 $ 64,480
[1] Includes payments and actual write offs, as well as changes in estimates in the reserves.