SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 8,071	$ 6,991
Additions Charged to Expense	1,034	1,664
Acquired from Acquisitions	0	0
Deductions	856	584
Balance at End of Year	8,249	8,071
Valuation Allowance for Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	125,870	241,789
Additions Charged to Expense	0	8,190
Acquired from Acquisitions	0	0
Deductions	125,635	124,109
Balance at End of Year	$ 235	$ 125,870