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SUPPLEMENTAL BALANCE SHEET INFORMATION
12 Months Ended
Sep. 30, 2023
Balance Sheet Related Disclosures [Abstract]  
SUPPLEMENTAL BALANCE SHEET INFORMATION
NOTE 14 SUPPLEMENTAL BALANCE SHEET INFORMATION
The following reflects the activity in our reserve for expected credit losses on trade receivables for fiscal years 2023, 2022 and 2021:
Year Ended September 30,
(in thousands)2023    2022    2021
Reserve for credit losses:
Balance at October 1,$2,975 $2,068 $1,820 
Provision for credit loss534 1,077 203 
(Write-off) recovery of credit loss(821)(170)45 
Balance at September 30, $2,688 $2,975 $2,068 
    
Accounts receivable, prepaid expenses and other current assets, net, accrued liabilities and noncurrent liabilities —other at September 30, 2023 and 2022 consist of the following:
Year Ended September 30,
(in thousands)2023    2022
Accounts receivable, net of reserve:
Trade receivables$403,091 $430,944 
Income tax receivable1,097 27,769 
Total accounts receivable, net of reserve$404,188 $458,713 
Prepaid expenses and other current assets, net:
Deferred mobilization$7,873 $5,048 
Prepaid insurance11,160 7,498 
Prepaid value added tax7,867 6,628 
Prepaid maintenance and rent12,278 13,092 
Accrued demobilization, net6,560 6,319 
Prepaid equipment21,821 10,091 
Insurance Recoverable28,129 9,684 
Other2,039 8,103 
Total prepaid expenses and other current assets, net$97,727 $66,463 
Accrued liabilities:
Accrued operating costs$20,618 $26,539 
Payroll and employee benefits55,596 58,604 
Taxes payable, other than income tax32,537 26,786 
Self-insurance liabilities60,921 38,422 
Deferred income23,441 19,821 
Deferred mobilization revenue10,247 8,959 
Accrued income taxes24,495 40,833 
Contingent consideration9,455 2,750 
Operating lease liability13,772 12,382 
Other11,803 6,055 
Total accrued liabilities$262,885 $241,151 
Noncurrent liabilities — Other:
Pension and other non-qualified retirement plans$33,048 $40,423 
Self-insurance liabilities42,285 38,422 
Contingent liability— 1,272 
Deferred revenue8,135 3,162 
Uncertain tax positions including interest and penalties3,136 2,381 
Operating lease liability41,038 27,350 
Other487 1,917 
Total noncurrent liabilities — other$128,129 $114,927