XML 85 R72.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Shareholders' Equity (Summary of Activity Related to Restricted Stock Units) (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2017 shares
Restricted Stock Units (RSUs) [Member] |
Unvested shares |
Outstanding, shares at December 31, 2016 | 1,252,291
Granted | 413,179
Forfeited | (45,409)
Vested and issued | (542,403)
Vested and deferred | (37,482)
Outstanding at September 30, 2017 | 352,214
Outstanding, shares at September 30, 2017 | 1,040,176
Performance Shares [Member] |
Unvested shares |
Outstanding, shares at December 31, 2016 | 427,144
Granted | 210,103
Vested and issued | (122,786)
Outstanding, shares at September 30, 2017 | 514,461
Progressive Waste Solutions Ltd. [Member] | Restricted Stock Units (RSUs) [Member] |
Unvested shares |
Outstanding at December 31, 2016 | 269,206
Cash settled | (79,744)
Outstanding at September 30, 2017 | 189,462
Progressive Waste Solutions Ltd. [Member] | Performance Shares [Member] |
Unvested shares |
Outstanding at December 31, 2016 | 92,957
Cash settled | (37,437)
Outstanding at September 30, 2017 | 55,520
Deferred Compensation, Share-based Payments [Member] |
Unvested shares |
Outstanding at December 31, 2016 | 68,942
Granted | 4,725
Share settled | (35,416)
Cash settled | (25,113)
Outstanding at September 30, 2017 | 13,138

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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://www.xbrl.org/2003/role/presentationRef -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=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cash Settled In Period + References No definition available. + Details
Name: | wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCashSettledInPeriod
Namespace Prefix: | wcn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References No definition available. + Details
Name: | wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingNumber
Namespace Prefix: | wcn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Rollforward [Abstract] + References No definition available. + Details
Name: | wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRollforwardAbstract
Namespace Prefix: | wcn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were vested and deferred during the reporting period. + References No definition available. + Details
Name: | wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndDeferredInPeriod
Namespace Prefix: | wcn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested and issued during the reporting period. + References No definition available. + Details
Name: | wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndIssuedInPeriod
Namespace Prefix: | wcn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangement By Share Based PaymentAward Equity Instruments Other Than Options Shares Settled In Period + References No definition available. + Details
Name: | wcn_ShareBasedCompensationArrangementByShareBasedPaymentawardEquityInstrumentsOtherThanOptionsSharesSettledInPeriod
Namespace Prefix: | wcn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis=us-gaap_DeferredCompensationShareBasedPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |