Annual report pursuant to Section 13 and 15(d)

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details)

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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member]      
Valuation allowances and reserves [Roll Forward]      
Balance at Beginning of Period $ 32,755 $ 29,634 $ 17,168
Charges of Costs, Expenses and Other 21,378 16,664 16,699
Write-off of Accounts Receivable (19,777) (14,846) (3,927)
Other [1] (131) 1,303 (306)
Balance at End of Period 34,225 32,755 29,634
Deferred Tax Asset Valuation Allowance [Member]      
Valuation allowances and reserves [Roll Forward]      
Balance at Beginning of Period 596,437 681,566 658,104
Charges of Costs, Expenses and Other (8,845) 18,067 11,820
Deletions 0 0 0
Other [2] (56,950) (103,196) 11,642
Balance at End of Period $ 530,642 $ 596,437 $ 681,566
[1] Foreign currency adjustments and acquisitions.
[2] During 2018, 2017 and 2016, the valuation allowance was adjusted for acquisitions, divestitures and foreign currency adjustments.