XML 55 R43.htm IDEA: XBRL DOCUMENT
v3.20.2

Financial Instruments (Interest Rate Swaps) - Additional Information (Detail) - Interest Rate Swap [Member] | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 USD ($) Swap | Jun. 26, 2020 USD ($)
Schedule Of Available For Sale Securities [Line Items] |  |
Notional value | $ 50,000,000 | $ 25,000,000
Interest rate swap, fixed interest rate | 0.885% | 1.30%
Interest rate swap, description of interest received | interest that varies with the one-month LIBOR |
Derivative, Type of Interest Rate Paid on Swap | fixed |
Number of interest rate swaps outstanding | Swap | 4 |
February 2021 [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Notional value | $ 10,000,000 |
Interest rate swap, fixed interest rate | 1.12% |
May 2022 [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Notional value | $ 20,000,000 |
Interest rate swap, fixed interest rate | 1.77% |
June 2023 [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Notional value | $ 15,000,000 |
Interest rate swap, fixed interest rate | 2.64% |
April 2025 [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Notional value | $ 50,000,000 |
Interest rate swap, fixed interest rate | 0.885% |

X
- Definition Derivative Floating Interest Rate Description + References No definition available. + Details
Name: | cbz_DerivativeFloatingInterestRateDescription
Namespace Prefix: | cbz_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Indicates whether the entity pays a variable or fixed price on a price risk swap. + References No definition available. + Details
Name: | us-gaap_DerivativeSwapType
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 + Details
Name: | us-gaap_NumberOfInterestRateDerivativesHeld
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=cbz_February2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=cbz_May2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=cbz_June2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=cbz_April2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |