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Shareholders' Equity (Summary of Vesting Activity Related to Restricted Share Units) (Details) | 9 Months Ended
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Sep. 30, 2018 shares
Restricted Stock Units (RSUs) [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Forfeited | (53,063)
Restricted Stock Units (RSUs) [Member] | Progressive Waste Solutions Ltd. [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vested at December 31, 2017 | 138,054
Vested over remaining service period | 14,695
Cash settled | (27,059)
Forfeited | (2,435)
Vested at September 30, 2018 | 123,255
Performance Shares [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Forfeited | (2,071)
Performance Shares [Member] | Progressive Waste Solutions Ltd. [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Vested at December 31, 2017 | 28,407
Vested over remaining service period | 25,417
Cash settled | (27,033)
Forfeited | (1,909)
Vested at September 30, 2018 | 24,882

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- 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=96867065&loc=d3e5070-113901 + Details
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Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested 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)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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Period Type: | duration

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- 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
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cash Settled In Period + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition As of the balance sheet date, the number of shares into which fully vested share based awards can be converted. + References No definition available. + Details
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- Details
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- Details
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- Details
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