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DERIVATIVE AND HEDGING ACTIVITIES - Netting Arrangements (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Derivative Assets
Gross Amounts Presented in the Consolidated Balance Sheet		$ 15,468	$ 69,717
Amounts Not Offset in the Consolidated Balance Sheet		(11,967)	(10,263)
Net Amount		3,501	59,454
Derivative Liabilities
Gross Amounts Presented in the Consolidated Balance Sheet		(16,062)	(12,907)
Amounts Not Offset in the Consolidated Balance Sheet		11,967	10,263
Net Amount		$ (4,095)	$ (2,644)
Amount received to settle outstanding positions	$ 100
Derivative contract novation fees.	$ 500

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