SEC Schedule, Article 12-09, Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure

SCHEDULE II

PURSUANT TO ITEM 15(a)(2)

OF FORM 10-K VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED

December 31, 2021, 2020 AND 2019

			ADDITIONS
DESCRIPTION	BALANCE AT BEGINNING OF PERIOD		CHARGED TO COSTS AND EXPENSES		CHARGED (CREDITED) TO OTHER ACCOUNTS		DEDUCTIONS(A)		BALANCE AT END OF PERIOD
Allowance for doubtful accounts deducted from accounts receivable in the balance sheet
Year ended December 31, 2021	$	2,120,000	$	830,000	$	190,000	$	1,570,000	$	1,570,000
Year ended December 31, 2020	$	2,060,000	$	2,080,000	$	100,000	$	2,120,000	$	2,120,000
Year ended December 31, 2019	$	2,790,000	$	810,000	$	490,000	$	2,030,000	$	2,060,000

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(A)Deductions, representing uncollectible accounts written-off, less recoveries of amounts reserved in prior years.