XML 43 R29.htm IDEA: XBRL DOCUMENT
v3.21.2

Workers' Compensation Claims - Summarizes Aggregate Workers' Compensation Reserve Activity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Workers Compensation Reserve [Abstract] |  |  |  |
Workers' compensation claims liabilities, Beginning balance | $ 362,663 | $ 445,310 | $ 357,746 | $ 438,986
Add: claims expense accrual |  |  |  |
Current period | 35,743 | 32,729 | 69,013 | 71,221
Prior periods | (5,483) | (1,373) | (6,663) | (2,186)
Total expense accrual | 30,260 | 31,356 | 62,350 | 69,035
Less: claim payments related to |  |  |  |
Current period | 3,927 | 4,527 | 4,979 | 6,077
Prior periods | 73,240 | 135,853 | 99,005 | 165,530
Total paid | 77,167 | 140,380 | 103,984 | 171,607
Change in claims incurred in excess of retention limits | (23) | 218 | (379) | 90
Workers' compensation claims liabilities, Ending balance | 315,733 | 336,504 | 315,733 | 336,504
Incurred but not reported (IBNR) | $ 190,818 | $ 206,521 | $ 190,818 | $ 206,521
Ratio of IBNR to workers' compensation claims liabilities | 60.00% | 61.00% | 60.00% | 61.00%

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 incurred but not reported. + References No definition available. + Details
Name: | bbsi_WorkersCompensationIncurredButNotReported
Namespace Prefix: | bbsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Workers compensation percent to liabilities incurred but not reported. + References No definition available. + Details
Name: | bbsi_WorkersCompensationPercentToLiabilitiesIncurredButNotReported
Namespace Prefix: | bbsi_
Data Type: | num:percentItemType
Balance Type: | na
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 -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(5)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)(a)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant