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Schedule II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Tables)
12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Summary of Valuation Allowance [Table Text Block] Allowance for Credit Losses:
Description
Balance at
Beginning
of Period
Additions
Charged to
Costs &
Expenses
Deductions
& Net
Write-Offs
Balance at
End of
Period
 (In thousands)
Year ended December 31, 2021$3,783 $1,640 $(2,912)$2,511 
Year ended December 31, 2020$2,332 $3,155 $(1,704)$3,783