XML 84 R73.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Acquisitions - Additional Information (Detail) $ in Thousands | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2018 USD ($) Client_List shares | Jun. 30, 2017 USD ($) Client_List shares | Mar. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Mar. 31, 2017 USD ($)
Business Acquisition Contingent Consideration [Line Items] |  |  |  |  |
Goodwill | $ 560,688 |  |  | $ 528,424 |
Contingent consideration | 12,400 | $ 17,500 |  |  |
Fair value of contingent consideration | 3,100 | 800 |  |  |
Consideration paid in cash | 4,100 | 4,800 |  |  |
Consideration paid in cash | $ 23,400 | $ 23,700 |  |  |
Number of common stock issued | shares | 56,000 | 177,000 |  |  |
CMF Associates, LLC (“CMF”), Slaton Insurance (“Slaton”) and Pacific Coastal Pension and Insurance Services, Inc. (Pacific Coastal”) [Member] |  |  |  |  |
Business Acquisition Contingent Consideration [Line Items] |  |  |  |  |
Goodwill | $ 32,255 | $ 39,460 | $ 32,300 |  | $ 39,500
Acquisition of Client Lists [Member] |  |  |  |  |
Business Acquisition Contingent Consideration [Line Items] |  |  |  |  |
Contingent consideration |  | $ 700 |  |  |
Acquisition of Client Lists [Member] | Benefits and Insurance Services Practice Group [Member] |  |  |  |  |
Business Acquisition Contingent Consideration [Line Items] |  |  |  |  |
Number of client list purchased | Client_List | 0 | 1 |  |  |
Previous Client List Purchases [Member] |  |  |  |  |
Business Acquisition Contingent Consideration [Line Items] |  |  |  |  |
Consideration paid in cash | $ 600 | $ 700 |  |  |

X
- Definition Business combination contingent consideration liability increase (decrease) adjustment. + References No definition available. + Details
Name: | cbz_BusinessCombinationContingentConsiderationLiabilityIncreaseDecreaseAdjustment
Namespace Prefix: | cbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Client list purchased. + References No definition available. + Details
Name: | cbz_ClientListPurchased
Namespace Prefix: | cbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of common shares issued. + References No definition available. + Details
Name: | cbz_NumberOfCommonSharesIssued
Namespace Prefix: | cbz_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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_BusinessAcquisitionContingentConsiderationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cash outflow representing an adjustment to the purchase price of a previous acquisition. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsForPreviousAcquisition
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=cbz_SeriesOfBusinessAcquisitionOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=cbz_AcquisitionOfClientListsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cbz_BenefitsAndInsuranceServicesPracticeGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=cbz_PreviousClientListsPurchasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |