The following table reconciles the number of shares used in calculating basic and diluted earnings per share:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2023		2022		2023		2022
Basic weighted-average shares outstanding		80,145		69,580		80,087		69,502
Incremental shares due to:
Performance shares		226		152		177		154
Restricted stock units		45		59		33		75
Diluted weighted-average shares outstanding		80,416		69,791		80,297		69,731

For stock-based awards, the dilutive effect is calculated using the treasury stock method. Under this method, the dilutive effect is computed as if the awards were exercised at the beginning of the period (or at time of issuance, if later) and assumes the related proceeds were used to repurchase common stock at the average market price during the period. Related proceeds include future compensation cost associated with the stock award.

For the three and six months ended June 30, 2023, there were approximately 34,000 and 68,000 stock-based awards, respectively, that were excluded from the calculation of diluted earnings per share as they were anti-dilutive. For the three and six months ended June 30, 2022, there were approximately 98,000 and 78,000 stock-based awards, respectively, that were excluded from the calculation of diluted earnings per share as they were anti-dilutive.

On August 30, 2018, our board of directors authorized management to repurchase up to $100.0 million of common stock with no time limit set for the repurchase (the 2018 Repurchase Program). During the three and six months ended June 30, 2022, we repurchased 94,566 shares of our common stock in open-market transactions for a total consideration of $4.2 million under the 2018 Repurchase Plan.

On August 31, 2022, our board of directors authorized management to repurchase up to $200.0 million of our common stock with no set time limit for the repurchase (the 2022 Repurchase Program). Concurrently, the board of directors terminated the remaining repurchase authorization under the 2018 Repurchase Program.

Shares under the 2022 Repurchase Program may be repurchased in open market transactions, including pursuant to a trading plan adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934 (the Trading Plan), or through privately negotiated transactions. The timing, manner, price and amount of repurchases will be determined according to, and subject to, the terms of the Trading Plan, and, subject to the terms of the Trading Plan, the 2022 Repurchase Program may be suspended, terminated or modified at any time for any reason. During the three and six months ended June 30, 2023, we repurchased 8,761 shares of our common stock for total consideration of $0.4 million under the 2022 Repurchase Plan. At June 30, 2023, we had remaining authorization of $149.6 million for future stock repurchases under the 2022 Repurchase Program. Transaction costs are not counted against authorized funds.

We record share repurchases upon trade date as opposed to the settlement date when cash is disbursed. We record a liability to account for repurchases that have not been cash settled. We retire shares upon repurchase. Any excess repurchase price over par is recorded in accumulated deficit.