UNEARNED REVENUE (Tables)

6 Months Ended

Jun. 30, 2020

Unearned Revenue

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

UNEARNED REVENUE

For the period ended	June 30,			December 31,			June 30,
(in thousands)	2020			2019			2019
Balance at beginning of year	$	136,507		$	127,075		$	127,075
Deferral of unearned revenue		105,928			174,404			100,188
Recognition of unearned revenue		(85,936	)		(164,972	)		(80,496	)
Balance at end of period	$	156,499		$	136,507		$	146,767