Quarterly report pursuant to Section 13 or 15(d)

UNEARNED REVENUE (Tables)

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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