Schedule II - Valuation and Qualifying Accounts (Details) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 83,251	$ 165,484	$ 168,762
Additions (Credited) Charged to Expense	54,421	(117,121)	7,189
Write-offs	(19,112)	(489)	(15,091)
Other	0	35,377	4,624
Balance at End of Period	$ 118,560	$ 83,251	$ 165,484