X0306 4 2023-02-17 false 0001318220 Waste Connections, Inc. WCN 0001229832 JACKMAN WORTHING 3 WATERWAY SQUARE PLACE SUITE 110 THE WOODLANDS TX 77380 true true false false President and CEO Common Shares 2023-02-18 4 M false 4401.00 0.00 A 148060.00 D Common Shares 2023-02-18 4 F false 1732.00 136.11 D 146328.00 D Common Shares 2023-02-19 4 M false 4664.00 0.00 A 150992.00 D Common Shares 2023-02-19 4 F false 1836.00 136.11 D 149156.00 D Restricted Share Units 0.00 2023-02-17 4 A false 15355.00 0.00 A Common Shares 15355.00 15355.00 D Restricted Share Units 0.00 2023-02-17 4 A false 15355.00 0.00 A Common Shares 15355.00 15355.00 D Restricted Share Units 0.00 2023-02-18 4 M false 4401.00 0.00 D Common Shares 4401.00 13203.00 D Restricted Share Units 0.00 2023-02-19 4 M false 4664.00 0.00 D Common Shares 4664.00 9326.00 D Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares. Represents an award of restricted share units. The award shall vest 25% per year over a four-year period following the date of grant. Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals at the end of each year during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 38,387 (250% of the target number). Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 18, 2022 and vest in four equal annual installments. The common shares are reported in Table 1. Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 19, 2021 and vest in four equal annual installments. The common shares are reported in Table 1. Worthing Jackman 2023-02-22