XML 77 R59.htm IDEA: XBRL DOCUMENT
v3.10.0.1

CAPITAL STOCK AND STOCK AWARD PLANS - Summary of Performance Based Shares and Units by First Vesting Date (Details) | 12 Months Ended
--- | ---
Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance shares and stock units granted, net of forfeitures (in shares) | 1,696,609
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 64.91
Unvested performance shares and restricted stock units (in shares) | 846,170
First Vesting Date - Dec 31 2015 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance shares and stock units granted, net of forfeitures (in shares) | 323,442
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 61.75
Unvested performance shares and restricted stock units (in shares) | 34,572
First Vesting Date - Dec 31 2016 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance shares and stock units granted, net of forfeitures (in shares) | 389,644
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 51.88
Unvested performance shares and restricted stock units (in shares) | 139,431
First Vesting Date - Dec 31 2017 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance shares and stock units granted, net of forfeitures (in shares) | 339,808
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 64.91
Unvested performance shares and restricted stock units (in shares) | 162,955
First Vesting Date - Dec 31 2018 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance shares and stock units granted, net of forfeitures (in shares) | 312,797
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 74.26
Unvested performance shares and restricted stock units (in shares) | 178,294
First Vesting Date - Dec 31 2019 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Performance shares and stock units granted, net of forfeitures (in shares) | 330,918
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 74.48
Unvested performance shares and restricted stock units (in shares) | 330,918

X
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardDateAxis=chrw_Range1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=chrw_Range2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=chrw_Range3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=chrw_Range4Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=chrw_Range5Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |