XML 38 R32.htm IDEA: XBRL DOCUMENT
v3.25.3

Workers' Compensation Claims Liabilities - Summarizes Aggregate Workers' Compensation Reserve Activity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Workers Compensation Reserve [Abstract] |  |  |  |
Workers' compensation claims liabilities, Beginning balance | $ 113,902 | $ 149,630 | $ 128,446 | $ 167,763
Add: claims expense incurred |  |  |  |
Current period | 3,232 | 2,358 | 9,257 | 9,657
Prior periods | (1,137) | (4,272) | (8,141) | (9,094)
Total claims expense incurred | 2,095 | (1,914) | 1,116 | 563
Less: claim payments related to |  |  |  |
Current period | 1,644 | 1,063 | 4,001 | 3,582
Prior periods | 5,159 | 9,493 | 16,272 | 27,716
Total claim payments | 6,803 | 10,556 | 20,273 | 31,298
Change in claims incurred in excess of retention limits | (10) | (357) | (105) | (225)
Workers' compensation claims liabilities, Ending balance | $ 109,184 | $ 136,803 | $ 109,184 | $ 136,803

X
- Definition Claim payments. + References No definition available. + Details
Name: | bbsi_ClaimPaymentsAbstract
Namespace Prefix: | bbsi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Claim payments prior period. + References No definition available. + Details
Name: | bbsi_ClaimPaymentsPriorPeriod
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Claims expense accrual. + References No definition available. + Details
Name: | bbsi_ClaimsExpenseAccrualAbstract
Namespace Prefix: | bbsi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Workers compensation change in claims incurred in excess of retention limits. + References No definition available. + Details
Name: | bbsi_WorkersCompensationChangeInClaimsIncurredInExcessOfRetentionLimits
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Workers compensation claim payments. + References No definition available. + Details
Name: | bbsi_WorkersCompensationClaimPayments
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Workers compensation claim payments current period. + References No definition available. + Details
Name: | bbsi_WorkersCompensationClaimPaymentsCurrentPeriod
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Workers compensation expense accrual claims. + References No definition available. + Details
Name: | bbsi_WorkersCompensationExpenseAccrualClaims
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Workers compensation expense accrual claims for current period. + References No definition available. + Details
Name: | bbsi_WorkersCompensationExpenseAccrualClaimsForCurrentPeriod
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Workers compensation expense adjustments accrual claims for prior periods. + References No definition available. + Details
Name: | bbsi_WorkersCompensationExpenseAdjustmentsAccrualClaimsForPriorPeriods
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition workers compensation reserve. + References No definition available. + Details
Name: | bbsi_WorkersCompensationReserveAbstract
Namespace Prefix: | bbsi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant