19.   Share repurchase program

On March 9, 2017, the Company announced that the Board of Directors authorized a share repurchase program (the 2017 Share Repurchase Program) pursuant to which the Company could repurchase up to $425,000 of the Company’s common stock. The 2017 Share Repurchase Program authorization revoked the previously authorized but unused amount of $79,863 from the earlier share repurchase program. The 2017 Share Repurchase Program did not have an expiration date but provided for suspension or discontinuation at any time.

On March 15, 2018, the Company announced that the Board of Directors authorized a share repurchase program (the 2018 Share Repurchase Program) pursuant to which the Company could repurchase up to $625,000 of the Company’s common stock. The 2018 Share Repurchase Program authorization revoked the previously authorized but unused amount of $41,317 from the 2017 Share Repurchase Program. The 2018 Share Repurchase Program did not have an expiration date but provided for suspension or discontinuation at any time.

On March 14, 2019, the Company announced that the Board of Directors authorized a new share repurchase program (the 2019 Share Repurchase Program) pursuant to which the Company could repurchase up to $875,000 of the Company’s common stock. The 2019 Share Repurchase Program authorization revoked the previously authorized but unused amount of $25,435 from the 2018 Share Repurchase Program. The 2019 Share Repurchase Program did not have an expiration date but provided for suspension or discontinuation at any time.

A summary of the Company’s common stock repurchase activity is presented in the following table:

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