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Supplemental Financial Information (Tables)

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Summary of Additions and Deductions Related to Allowances for Doubtful Accounts

Additions and deductions related to the allowance for doubtful accounts receivable for 2021, 2020 and 2019 were as follows (in thousands):

			Balance at Beginning of Year						Additions						Deductions						Balance at End of Year
Allowance for doubtful accounts receivable:
Year ended December 31, 2021			$	15,106					$	7,862					$	(6,027)					$	16,941
Year ended December 31, 2020			$	10,762					$	10,163					$	(5,819)					$	15,106
Year ended December 31, 2019			$	10,462					$	5,079					$	(4,779)					$	10,762

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- References

No definition available.

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- Definition

Tabular disclosure of allowance for credit loss of financing receivable, classified as current.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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