UNEARNED REVENUE (Tables)

3 Months Ended

Mar. 31, 2021

Unearned Revenue

Changes in unearned revenue were as follows:

Changes in unearned revenue were as follows:

UNEARNED REVENUE

	Three Months Ended
	March 31,
(in thousands)	2021			2020
Balance at beginning of year	$	149,224		$	136,507
Deferral of unearned revenue		55,379			49,552
Recognition of unearned revenue		(45,837	)		(42,707	)
Balance at end of period	$	158,766		$	143,352