X0306 4 2020-01-02 false 0001318084 Core-Mark Holding Company, Inc. CORE 0001707582 Kammerud Jordana Daryl 1500 SOLANA BLVD, SUITE 3400 WESTLAKE TX 76262 false true false false Senior VP and Chief HR Officer Coremark Common Stock 2020-01-02 4 M false 5751 0 A 17867 D Coremark Common Stock 2020-01-02 4 M false 4904 0 A 22771 D Coremark Common Stock 2020-01-02 4 M false 2381 0 A 25152 D Coremark Common Stock 2020-01-02 4 F false 4436 25.96 D 20716 D 2017 RSU Grant 0.01 2020-01-02 4 M false 5751 0 D Coremark Common Stock 5751 0 D 2018 RSU Grant 0.01 2020-01-02 4 M false 4904 0 D Coremark Common Stock 4904 4904 D 2018 Performance Shares 0.01 2020-01-02 4 M false 2381 0 D Coremark Common Stock 2381 2381 D This grant represents RSU's from the 2010 Long Term Incentive Plan that are subject to the following vesting schedule: 1/3 on January 1, 2018; 1/3 on January 1, 2019; 1/3 on January 1, 2020. Shares withheld for taxes on RSU Vesting This grant represents RSU's from the 2010 Long Term Incentive Plan that are subject to the following vesting schedule: 1/3 on January 22, 2019; 1/3 on January 1, 2020; 1/3 on January 1, 2021. Performance Shares earned upon the achievement of certain company financial goals. Shares vest; 1/3 on January 23, 2019, 1/3 on January 1, 2020 and 1/3 on January 1, 2021. Chris Miller, POA 2020-01-06