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Pay vs Performance Disclosure pure in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Value of Initial Fixed $100 Investment Based on: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year | ​ | ​ | ​ | Summary Compensation Table Total for First PEO(1) | ​ | ​ | ​ | Compensation Actually Paid to First PEO(2) | ​ | ​ | ​ | Summary Compensation Table Total for Second PEO(3) | ​ | ​ | ​ | Compensation Actually Paid to Second PEO(4) | ​ | ​ | ​ | Summary Compensation Table Total for Third PEO(5) | ​ | ​ | ​ | Compensation Actually Paid to Third PEO(6) | ​ | ​ | ​ | Average Summary Compensation Table Total for Non-PEO(7) | ​ | ​ | ​ | Average Compensation Actually Paid to Non-PEO NEO(S)(8) | ​ | ​ | ​ | Total Shareholder Return(9) | ​ | ​ | ​ | Per Group Total Shareholder Return(10) | ​ | ​ | ​ | Net Income (Millions)(11)) | ​ | ​ | ​ | Adjusted EBITDA (Millions)(12) | ​
2024 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 297,851 | ​ | ​ | ​ | ​ | ​ | ​ | (6,155,142) | ​ | ​ | ​ | ​ | ​ | ​ | 5,887,980 | ​ | ​ | ​ | ​ | ​ | ​ | 3,112,991 | ​ | ​ | ​ | ​ | ​ | ​ | 1,316,692 | ​ | ​ | ​ | ​ | ​ | ​ | 654,642 | ​ | ​ | ​ | ​ | ​ | ​ | 114.19 | ​ | ​ | ​ | ​ | ​ | ​ | 137.58 | ​ | ​ | ​ | ​ | ​ | ​ | 86 | ​ | ​ | ​ | ​ | ​ | ​ | 786 | ​ | ​
2023 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 7,335,430 | ​ | ​ | ​ | ​ | ​ | ​ | 934,313 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 1,542,699 | ​ | ​ | ​ | ​ | ​ | ​ | (296,368)(13) | ​ | ​ | ​ | ​ | ​ | ​ | 203.94 | ​ | ​ | ​ | ​ | ​ | ​ | 149.93 | ​ | ​ | ​ | ​ | ​ | ​ | (238) | ​ | ​ | ​ | ​ | ​ | ​ | 1,014 | ​ | ​
2022 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 7,670,351 | ​ | ​ | ​ | ​ | ​ | ​ | 9,839,552 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 2,107,360 | ​ | ​ | ​ | ​ | ​ | ​ | 2,450,210 | ​ | ​ | ​ | ​ | ​ | ​ | 191.44 | ​ | ​ | ​ | ​ | ​ | ​ | 130.45 | ​ | ​ | ​ | ​ | ​ | ​ | 578 | ​ | ​ | ​ | ​ | ​ | ​ | 1,361 | ​ | ​
2021 | ​ | ​ | ​ | ​ | ​ | 9,012,886 | ​ | ​ | ​ | ​ | ​ | ​ | 25,427,573 | ​ | ​ | ​ | ​ | ​ | ​ | 5,537,669 | ​ | ​ | ​ | ​ | ​ | ​ | 10,256,484 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 2,359,471 | ​ | ​ | ​ | ​ | ​ | ​ | 5,383,970 | ​ | ​ | ​ | ​ | ​ | ​ | 203.63 | ​ | ​ | ​ | ​ | ​ | ​ | 151.70 | ​ | ​ | ​ | ​ | ​ | ​ | 608 | ​ | ​ | ​ | ​ | ​ | ​ | 1,313 | ​ | ​
2020 | ​ | ​ | ​ | ​ | ​ | 8,606,576 | ​ | ​ | ​ | ​ | ​ | ​ | 16,928,335 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | 2,915,198 | ​ | ​ | ​ | ​ | ​ | ​ | 4,524,555 | ​ | ​ | ​ | ​ | ​ | ​ | 145.61 | ​ | ​ | ​ | ​ | ​ | ​ | 119.86 | ​ | ​ | ​ | ​ | ​ | ​ | 219 | ​ | ​ | ​ | ​ | ​ | ​ | 879 | ​ | ​
​ (1) The dollar amounts reported are the amounts of total compensation reported for Mr. Vergnano for each corresponding year in the “Total” column of the SCT. Refer to “Executive Compensation — Executive Compensation Tables — Summary Compensation Table.” ​ (2) The dollar amounts reported represent the amount of CAP to Mr. Vergnano, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Mr. Vergnano during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to Mr. Vergnano’s total compensation for each year to determine the CAP. ​ (3) The dollar amounts reported are the amounts of total compensation reported for Mr. Newman for each corresponding year in the “Total” column of the SCT. Refer to “Executive Compensation — Executive Compensation Tables — Summary Compensation Table.” ​ (4) The dollar amounts reported represent the amount of CAP to Mr. Newman, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Mr. Newman during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to Mr. Newman’s total compensation for each year to determine the CAP. ​ (5) The dollar amounts reported are the amounts of total compensation reported for Ms. Dignam for each corresponding year in the “Total” column of the SCT. Refer to “Executive Compensation — Executive Compensation Tables — Summary Compensation Table.” ​ (6) The dollar amounts reported represent the amount of CAP to Ms. Dignam, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Ms. Dignam during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to Ms. Dignam’s total compensation for each year to determine the CAP. ​ (7) The dollar amounts reported represent the average of the amounts reported for the Company’s NEOs as a group (excluding the applicable PEO) in the “Total” column of the SCT in each applicable year. The names of each of the NEOs (excluding the applicable PEO) included for purposes of calculating the average amounts in each applicable year are as follows: (i) for 2024, Shane Hostetter, Kristine Wellman, Joseph Martinko, Gerardo Familiar, Matthew Abbott and Jonathan Lock; (ii) for 2023, Jonathan Lock, Denise Dignam, Kristine Wellman, Alvenia Scarborough, Susan Kelliher, Sameer Ralhan, and Edwin Sparks; (iii) for 2022, Sameer Ralhan, Edwin Sparks, Alisha Bellezza, Denise Dignam, and David Shelton; (iv) for 2021, Sameer Ralhan, Edwin Sparks, Susan Kelliher, Bryan Snell, and David Shelton; and (v) for 2020, Sameer Ralhan, Edwin Sparks, Mark Newman, and David Shelton. ​ (8) The dollar amounts reported represent the average amount of CAP to the NEOs as a group (excluding the applicable PEO), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding the applicable PEO) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to the NEOs’ (excluding the applicable PEO) total compensation for each year to determine the CAP. ​ (9) TSR is calculated by dividing the sum of the cumulative amount of dividends for the measurement period, assuming dividend reinvestment, and the difference between the Company’s share price at the end and the beginning of the measurement period by the Company’s share price at the beginning of the measurement period. ​ (10) Represents the weighted peer group TSR, weighted according to the respective companies’ stock market capitalization at the beginning of each period for which a return is indicated. The peer group used for this purpose is the following published industry index: S&P 400 Chemicals. ​ (11) The dollar amounts reported represent the amount of net income reflected in the Company’s audited financial statements for the applicable year. ​ (12) See “Compensation Discussion and Analysis” in this Proxy Statement for the definition of Adjusted EBITDA. ​ (13) Average CAP of non-PEO NEOs is a negative amount due to equity forfeited upon the departures of Messrs. Ralhan and Sparks.
​ | ​ | ​ | ​ | PEO 1 | ​ | ​ | ​ | PEO 2 | ​
​ | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​
Summary Compensation Table Total | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 9,012,886 | ​ | ​ | ​ | ​ | ​ | $ | 8,606,576 | ​ | ​ | ​ | ​ | ​ | $ | 297,851 | ​ | ​ | ​ | ​ | ​ | $ | 7,335,430 | ​ | ​ | ​ | ​ | ​ | $ | 7,670,351 | ​ | ​ | ​ | ​ | ​ | $ | 5,537,669 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Less: Reported Fair Value of Equity Awards(a) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 7,056,334 | ​ | ​ | ​ | ​ | ​ | $ | 6,231,013 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 6,249,631 | ​ | ​ | ​ | ​ | ​ | $ | 5,504,353 | ​ | ​ | ​ | ​ | ​ | $ | 3,039,984 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Year-End Fair Value of Equity Awards Granted in the Year(b(i)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 10,037,056 | ​ | ​ | ​ | ​ | ​ | $ | 14,805,523 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 5,542,082 | ​ | ​ | ​ | ​ | ​ | $ | 7,286,350 | ​ | ​ | ​ | ​ | ​ | $ | 3,737,324 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years and Remain Unvested(b(II)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 11,676,849 | ​ | ​ | ​ | ​ | ​ | $ | (501,171) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (4,188,551) | ​ | ​ | ​ | ​ | ​ | $ | (231,485) | ​ | ​ | ​ | ​ | ​ | $ | 3,508,735 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year(b(III)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 144,996 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year(b(iv)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 507,084 | ​ | ​ | ​ | ​ | ​ | $ | (2,653) | ​ | ​ | ​ | ​ | ​ | $ | (1,095,363) | ​ | ​ | ​ | ​ | ​ | $ | 516,921 | ​ | ​ | ​ | ​ | ​ | $ | 333,788 | ​ | ​ | ​ | ​ | ​ | $ | 184,986 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Fair Value at the End of Prior Year of Equity Awards that Fail to Meet Vesting Conditions(b(v)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (5,293,120) | ​ | ​ | ​ | ​ | ​ | $ | (1,929,442) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation(b(vi)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 1,105,035 | ​ | ​ | ​ | ​ | ​ | $ | 251,073 | ​ | ​ | ​ | ​ | ​ | $ | (64,510) | ​ | ​ | ​ | ​ | ​ | $ | (92,496) | ​ | ​ | ​ | ​ | ​ | $ | 284,902 | ​ | ​ | ​ | ​ | ​ | $ | 327,754 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Less: Reported Change in the Actuarial Present Value of Pension Benefits(c) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Actuarially determined service cost for services rendered during the fiscal year | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Entire cost of benefits granted in a plan amendment (or initiation) during the applicable year that are attributed by the benefit formula to services rendered in periods prior to the plan amendment or initiation | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
CAP | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 25,427,573 | ​ | ​ | ​ | ​ | ​ | $ | 16,928,335 | ​ | ​ | ​ | ​ | ​ | $ | (6,155,142) | ​ | ​ | ​ | ​ | ​ | $ | 934,313 | ​ | ​ | ​ | ​ | ​ | $ | 9,839,552 | ​ | ​ | ​ | ​ | ​ | $ | 10,256,484 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
​ | ​ | ​ | ​ | PEO 3 | ​ | ​ | ​ | NEO Average | ​
​ | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​
Summary Compensation Table Total | ​ | ​ | ​ | ​ | $ | 5,887,980 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 1,316,692 | ​ | ​ | ​ | ​ | ​ | $ | 1,542,699 | ​ | ​ | ​ | ​ | ​ | $ | 2,107,360 | ​ | ​ | ​ | ​ | ​ | $ | 2,359,471 | ​ | ​ | ​ | ​ | ​ | $ | 2,915,198 | ​ | ​
Less: Reported Fair Value of Equity Awards(a) | ​ | ​ | ​ | ​ | $ | 3,984,736 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 688,272 | ​ | ​ | ​ | ​ | ​ | $ | 1,042,701 | ​ | ​ | ​ | ​ | ​ | $ | 1,130,702 | ​ | ​ | ​ | ​ | ​ | $ | 1,139,675 | ​ | ​ | ​ | ​ | ​ | $ | 1,807,220 | ​ | ​
Add: Year-End Fair Value of Equity Awards Granted in the Year(b(i)) | ​ | ​ | ​ | ​ | $ | 1,981,568 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 376,061 | ​ | ​ | ​ | ​ | ​ | $ | 549,601 | ​ | ​ | ​ | ​ | ​ | $ | 1,482,246 | ​ | ​ | ​ | ​ | ​ | $ | 1,697,677 | ​ | ​ | ​ | ​ | ​ | $ | 3,537,581 | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years and Remain Unvested(b(II)) | ​ | ​ | ​ | ​ | $ | (663,542) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (150,317) | ​ | ​ | ​ | ​ | ​ | $ | (246,002) | ​ | ​ | ​ | ​ | ​ | $ | (164,478) | ​ | ​ | ​ | ​ | ​ | $ | 2,182,023 | ​ | ​ | ​ | ​ | ​ | $ | (157,388) | ​ | ​
Add: Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year(b(III)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year(b(iv)) | ​ | ​ | ​ | ​ | $ | (160,152) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (95,438) | ​ | ​ | ​ | ​ | ​ | $ | 97,757 | ​ | ​ | ​ | ​ | ​ | $ | 47,967 | ​ | ​ | ​ | ​ | ​ | $ | 77,860 | ​ | ​ | ​ | ​ | ​ | $ | (17,955) | ​ | ​
Add: Fair Value at the End of Prior Year of Equity Awards that Fail to Meet Vesting Conditions(b(v)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (113,044) | ​ | ​ | ​ | ​ | ​ | $ | (1,178,272) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation(b(vi)) | ​ | ​ | ​ | ​ | $ | 51,873 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 8,961 | ​ | ​ | ​ | ​ | ​ | $ | (19,450) | ​ | ​ | ​ | ​ | ​ | $ | 107,817 | ​ | ​ | ​ | ​ | ​ | $ | 206,615 | ​ | ​ | ​ | ​ | ​ | $ | 54,340 | ​ | ​
Less: Reported Change in the Actuarial Present Value of Pension Benefits(c) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Actuarially determined service cost for services rendered during the fiscal year | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Entire cost of benefits granted in a plan amendment (or initiation) during the applicable year that are attributed by the benefit formula to services rendered in periods prior to the plan amendment or initiation | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
CAP | ​ | ​ | ​ | ​ | $ | 3,112,991 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 654,642 | ​ | ​ | ​ | ​ | ​ | $ | (296,368) | ​ | ​ | ​ | ​ | ​ | $ | 2,450,210 | ​ | ​ | ​ | ​ | ​ | $ | 5,383,970 | ​ | ​ | ​ | ​ | ​ | $ | 4,524,555 | ​ | ​
​ (a) The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” and “Option Awards” columns in the SCT for the applicable year. ​ (b) The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in any prior fiscal year that fail to meet the applicable vesting conditions during the covered fiscal year, the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. ​ (c) The amounts included in this row are the amounts reported in “Change in Pension and Nonqualified Deferred Compensation” column of the SCT for each applicable year. |  |  |  |
Named Executive Officers, Footnote | (1) The dollar amounts reported are the amounts of total compensation reported for Mr. Vergnano for each corresponding year in the “Total” column of the SCT. Refer to “Executive Compensation — Executive Compensation Tables — Summary Compensation Table.” ​ (2) The dollar amounts reported represent the amount of CAP to Mr. Vergnano, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Mr. Vergnano during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to Mr. Vergnano’s total compensation for each year to determine the CAP. ​ (3) The dollar amounts reported are the amounts of total compensation reported for Mr. Newman for each corresponding year in the “Total” column of the SCT. Refer to “Executive Compensation — Executive Compensation Tables — Summary Compensation Table.” ​ (4) The dollar amounts reported represent the amount of CAP to Mr. Newman, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Mr. Newman during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to Mr. Newman’s total compensation for each year to determine the CAP. ​ (5) The dollar amounts reported are the amounts of total compensation reported for Ms. Dignam for each corresponding year in the “Total” column of the SCT. Refer to “Executive Compensation — Executive Compensation Tables — Summary Compensation Table.” ​ (6) The dollar amounts reported represent the amount of CAP to Ms. Dignam, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Ms. Dignam during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to Ms. Dignam’s total compensation for each year to determine the CAP. ​ (7) The dollar amounts reported represent the average of the amounts reported for the Company’s NEOs as a group (excluding the applicable PEO) in the “Total” column of the SCT in each applicable year. The names of each of the NEOs (excluding the applicable PEO) included for purposes of calculating the average amounts in each applicable year are as follows: (i) for 2024, Shane Hostetter, Kristine Wellman, Joseph Martinko, Gerardo Familiar, Matthew Abbott and Jonathan Lock; (ii) for 2023, Jonathan Lock, Denise Dignam, Kristine Wellman, Alvenia Scarborough, Susan Kelliher, Sameer Ralhan, and Edwin Sparks; (iii) for 2022, Sameer Ralhan, Edwin Sparks, Alisha Bellezza, Denise Dignam, and David Shelton; (iv) for 2021, Sameer Ralhan, Edwin Sparks, Susan Kelliher, Bryan Snell, and David Shelton; and (v) for 2020, Sameer Ralhan, Edwin Sparks, Mark Newman, and David Shelton. ​ (8) The dollar amounts reported represent the average amount of CAP to the NEOs as a group (excluding the applicable PEO), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding the applicable PEO) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following “Pay Versus Performance Calculation Detail” table displays the adjustments made to the NEOs’ (excluding the applicable PEO) total compensation for each year to determine the CAP. |  |  |  |
Peer Group Issuers, Footnote | (9) TSR is calculated by dividing the sum of the cumulative amount of dividends for the measurement period, assuming dividend reinvestment, and the difference between the Company’s share price at the end and the beginning of the measurement period by the Company’s share price at the beginning of the measurement period. ​ (10) Represents the weighted peer group TSR, weighted according to the respective companies’ stock market capitalization at the beginning of each period for which a return is indicated. The peer group used for this purpose is the following published industry index: S&P 400 Chemicals. |  |  |  |
Adjustment To PEO Compensation, Footnote |
​ | ​ | ​ | ​ | PEO 1 | ​ | ​ | ​ | PEO 2 | ​
​ | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​
Summary Compensation Table Total | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 9,012,886 | ​ | ​ | ​ | ​ | ​ | $ | 8,606,576 | ​ | ​ | ​ | ​ | ​ | $ | 297,851 | ​ | ​ | ​ | ​ | ​ | $ | 7,335,430 | ​ | ​ | ​ | ​ | ​ | $ | 7,670,351 | ​ | ​ | ​ | ​ | ​ | $ | 5,537,669 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Less: Reported Fair Value of Equity Awards(a) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 7,056,334 | ​ | ​ | ​ | ​ | ​ | $ | 6,231,013 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 6,249,631 | ​ | ​ | ​ | ​ | ​ | $ | 5,504,353 | ​ | ​ | ​ | ​ | ​ | $ | 3,039,984 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Year-End Fair Value of Equity Awards Granted in the Year(b(i)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 10,037,056 | ​ | ​ | ​ | ​ | ​ | $ | 14,805,523 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 5,542,082 | ​ | ​ | ​ | ​ | ​ | $ | 7,286,350 | ​ | ​ | ​ | ​ | ​ | $ | 3,737,324 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years and Remain Unvested(b(II)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 11,676,849 | ​ | ​ | ​ | ​ | ​ | $ | (501,171) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (4,188,551) | ​ | ​ | ​ | ​ | ​ | $ | (231,485) | ​ | ​ | ​ | ​ | ​ | $ | 3,508,735 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year(b(III)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 144,996 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year(b(iv)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 507,084 | ​ | ​ | ​ | ​ | ​ | $ | (2,653) | ​ | ​ | ​ | ​ | ​ | $ | (1,095,363) | ​ | ​ | ​ | ​ | ​ | $ | 516,921 | ​ | ​ | ​ | ​ | ​ | $ | 333,788 | ​ | ​ | ​ | ​ | ​ | $ | 184,986 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Fair Value at the End of Prior Year of Equity Awards that Fail to Meet Vesting Conditions(b(v)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (5,293,120) | ​ | ​ | ​ | ​ | ​ | $ | (1,929,442) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation(b(vi)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 1,105,035 | ​ | ​ | ​ | ​ | ​ | $ | 251,073 | ​ | ​ | ​ | ​ | ​ | $ | (64,510) | ​ | ​ | ​ | ​ | ​ | $ | (92,496) | ​ | ​ | ​ | ​ | ​ | $ | 284,902 | ​ | ​ | ​ | ​ | ​ | $ | 327,754 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Less: Reported Change in the Actuarial Present Value of Pension Benefits(c) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Actuarially determined service cost for services rendered during the fiscal year | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Entire cost of benefits granted in a plan amendment (or initiation) during the applicable year that are attributed by the benefit formula to services rendered in periods prior to the plan amendment or initiation | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
CAP | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 25,427,573 | ​ | ​ | ​ | ​ | ​ | $ | 16,928,335 | ​ | ​ | ​ | ​ | ​ | $ | (6,155,142) | ​ | ​ | ​ | ​ | ​ | $ | 934,313 | ​ | ​ | ​ | ​ | ​ | $ | 9,839,552 | ​ | ​ | ​ | ​ | ​ | $ | 10,256,484 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
​ | ​ | ​ | ​ | PEO 3 | ​ | ​ | ​ | NEO Average | ​
​ | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​
Summary Compensation Table Total | ​ | ​ | ​ | ​ | $ | 5,887,980 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 1,316,692 | ​ | ​ | ​ | ​ | ​ | $ | 1,542,699 | ​ | ​ | ​ | ​ | ​ | $ | 2,107,360 | ​ | ​ | ​ | ​ | ​ | $ | 2,359,471 | ​ | ​ | ​ | ​ | ​ | $ | 2,915,198 | ​ | ​
Less: Reported Fair Value of Equity Awards(a) | ​ | ​ | ​ | ​ | $ | 3,984,736 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 688,272 | ​ | ​ | ​ | ​ | ​ | $ | 1,042,701 | ​ | ​ | ​ | ​ | ​ | $ | 1,130,702 | ​ | ​ | ​ | ​ | ​ | $ | 1,139,675 | ​ | ​ | ​ | ​ | ​ | $ | 1,807,220 | ​ | ​
Add: Year-End Fair Value of Equity Awards Granted in the Year(b(i)) | ​ | ​ | ​ | ​ | $ | 1,981,568 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 376,061 | ​ | ​ | ​ | ​ | ​ | $ | 549,601 | ​ | ​ | ​ | ​ | ​ | $ | 1,482,246 | ​ | ​ | ​ | ​ | ​ | $ | 1,697,677 | ​ | ​ | ​ | ​ | ​ | $ | 3,537,581 | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years and Remain Unvested(b(II)) | ​ | ​ | ​ | ​ | $ | (663,542) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (150,317) | ​ | ​ | ​ | ​ | ​ | $ | (246,002) | ​ | ​ | ​ | ​ | ​ | $ | (164,478) | ​ | ​ | ​ | ​ | ​ | $ | 2,182,023 | ​ | ​ | ​ | ​ | ​ | $ | (157,388) | ​ | ​
Add: Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year(b(III)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year(b(iv)) | ​ | ​ | ​ | ​ | $ | (160,152) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (95,438) | ​ | ​ | ​ | ​ | ​ | $ | 97,757 | ​ | ​ | ​ | ​ | ​ | $ | 47,967 | ​ | ​ | ​ | ​ | ​ | $ | 77,860 | ​ | ​ | ​ | ​ | ​ | $ | (17,955) | ​ | ​
Add: Fair Value at the End of Prior Year of Equity Awards that Fail to Meet Vesting Conditions(b(v)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (113,044) | ​ | ​ | ​ | ​ | ​ | $ | (1,178,272) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation(b(vi)) | ​ | ​ | ​ | ​ | $ | 51,873 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 8,961 | ​ | ​ | ​ | ​ | ​ | $ | (19,450) | ​ | ​ | ​ | ​ | ​ | $ | 107,817 | ​ | ​ | ​ | ​ | ​ | $ | 206,615 | ​ | ​ | ​ | ​ | ​ | $ | 54,340 | ​ | ​
Less: Reported Change in the Actuarial Present Value of Pension Benefits(c) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Actuarially determined service cost for services rendered during the fiscal year | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Entire cost of benefits granted in a plan amendment (or initiation) during the applicable year that are attributed by the benefit formula to services rendered in periods prior to the plan amendment or initiation | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
CAP | ​ | ​ | ​ | ​ | $ | 3,112,991 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 654,642 | ​ | ​ | ​ | ​ | ​ | $ | (296,368) | ​ | ​ | ​ | ​ | ​ | $ | 2,450,210 | ​ | ​ | ​ | ​ | ​ | $ | 5,383,970 | ​ | ​ | ​ | ​ | ​ | $ | 4,524,555 | ​ | ​
(a) The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” and “Option Awards” columns in the SCT for the applicable year. ​ (b) The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in any prior fiscal year that fail to meet the applicable vesting conditions during the covered fiscal year, the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. ​ (c) The amounts included in this row are the amounts reported in “Change in Pension and Nonqualified Deferred Compensation” column of the SCT for each applicable year. |  |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 1,316,692 | $ 1,542,699 | $ 2,107,360 | $ 2,359,471 | $ 2,915,198
Non-PEO NEO Average Compensation Actually Paid Amount | $ 654,642 | (296,368) | 2,450,210 | 5,383,970 | 4,524,555
Adjustment to Non-PEO NEO Compensation Footnote |
​ | ​ | ​ | ​ | PEO 3 | ​ | ​ | ​ | NEO Average | ​
​ | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2022 | ​ | ​ | ​ | 2021 | ​ | ​ | ​ | 2020 | ​
Summary Compensation Table Total | ​ | ​ | ​ | ​ | $ | 5,887,980 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 1,316,692 | ​ | ​ | ​ | ​ | ​ | $ | 1,542,699 | ​ | ​ | ​ | ​ | ​ | $ | 2,107,360 | ​ | ​ | ​ | ​ | ​ | $ | 2,359,471 | ​ | ​ | ​ | ​ | ​ | $ | 2,915,198 | ​ | ​
Less: Reported Fair Value of Equity Awards(a) | ​ | ​ | ​ | ​ | $ | 3,984,736 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 688,272 | ​ | ​ | ​ | ​ | ​ | $ | 1,042,701 | ​ | ​ | ​ | ​ | ​ | $ | 1,130,702 | ​ | ​ | ​ | ​ | ​ | $ | 1,139,675 | ​ | ​ | ​ | ​ | ​ | $ | 1,807,220 | ​ | ​
Add: Year-End Fair Value of Equity Awards Granted in the Year(b(i)) | ​ | ​ | ​ | ​ | $ | 1,981,568 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 376,061 | ​ | ​ | ​ | ​ | ​ | $ | 549,601 | ​ | ​ | ​ | ​ | ​ | $ | 1,482,246 | ​ | ​ | ​ | ​ | ​ | $ | 1,697,677 | ​ | ​ | ​ | ​ | ​ | $ | 3,537,581 | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years and Remain Unvested(b(II)) | ​ | ​ | ​ | ​ | $ | (663,542) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (150,317) | ​ | ​ | ​ | ​ | ​ | $ | (246,002) | ​ | ​ | ​ | ​ | ​ | $ | (164,478) | ​ | ​ | ​ | ​ | ​ | $ | 2,182,023 | ​ | ​ | ​ | ​ | ​ | $ | (157,388) | ​ | ​
Add: Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year(b(III)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year(b(iv)) | ​ | ​ | ​ | ​ | $ | (160,152) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (95,438) | ​ | ​ | ​ | ​ | ​ | $ | 97,757 | ​ | ​ | ​ | ​ | ​ | $ | 47,967 | ​ | ​ | ​ | ​ | ​ | $ | 77,860 | ​ | ​ | ​ | ​ | ​ | $ | (17,955) | ​ | ​
Add: Fair Value at the End of Prior Year of Equity Awards that Fail to Meet Vesting Conditions(b(v)) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | (113,044) | ​ | ​ | ​ | ​ | ​ | $ | (1,178,272) | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation(b(vi)) | ​ | ​ | ​ | ​ | $ | 51,873 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 8,961 | ​ | ​ | ​ | ​ | ​ | $ | (19,450) | ​ | ​ | ​ | ​ | ​ | $ | 107,817 | ​ | ​ | ​ | ​ | ​ | $ | 206,615 | ​ | ​ | ​ | ​ | ​ | $ | 54,340 | ​ | ​
Less: Reported Change in the Actuarial Present Value of Pension Benefits(c) | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Actuarially determined service cost for services rendered during the fiscal year | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
Add: Entire cost of benefits granted in a plan amendment (or initiation) during the applicable year that are attributed by the benefit formula to services rendered in periods prior to the plan amendment or initiation | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​
CAP | ​ | ​ | ​ | ​ | $ | 3,112,991 | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | $ | 654,642 | ​ | ​ | ​ | ​ | ​ | $ | (296,368) | ​ | ​ | ​ | ​ | ​ | $ | 2,450,210 | ​ | ​ | ​ | ​ | ​ | $ | 5,383,970 | ​ | ​ | ​ | ​ | ​ | $ | 4,524,555 | ​ | ​
(a) The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” and “Option Awards” columns in the SCT for the applicable year. ​ (b) The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in any prior fiscal year that fail to meet the applicable vesting conditions during the covered fiscal year, the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. ​ (c) The amounts included in this row are the amounts reported in “Change in Pension and Nonqualified Deferred Compensation” column of the SCT for each applicable year. |  |  |  |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |  |
Tabular List, Table | Most Important Company Performance Measures for Determining Executive Compensation For fiscal year 2024, our CLDC identified the performance measures listed below as the most important financial performance measures used by the Company to link CAP for our NEOs, for the most recently completed fiscal year, to the Company’s performance: Adjusted EBITDA ​ Net Income ​ TSR |  |  |  |
Total Shareholder Return Amount | $ 114.19 | 203.94 | 191.44 | 203.63 | 145.61
Peer Group Total Shareholder Return Amount | 137.58 | 149.93 | 130.45 | 151.7 | 119.86
Net Income (Loss) | $ 86,000,000 | $ (238,000,000) | $ 578,000,000 | $ 608,000,000 | $ 219,000,000
Company Selected Measure Amount | 786 | 1,014 | 1,361 | 1,313 | 879
PEO Name | Ms. Dignam |  |  |  |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted EBITDA |  |  |  |
Non-GAAP Measure Description | (12) See “Compensation Discussion and Analysis” in this Proxy Statement for the definition of Adjusted EBITDA. |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Net Income |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | TSR |  |  |  |
Mr Vergnano [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount |  |  |  | $ 9,012,886 | $ 8,606,576
PEO Actually Paid Compensation Amount |  |  |  | 25,427,573 | 16,928,335
Mr Vergnano [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Vergnano [Member] | Pension Adjustments Prior Service Cost |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Vergnano [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  | (7,056,334) | (6,231,013)
Mr Vergnano [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  | 10,037,056 | 14,805,523
Mr Vergnano [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  | 11,676,849 | (501,171)
Mr Vergnano [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  | 144,996 |
Mr Vergnano [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  | 507,084 | (2,653)
Mr Vergnano [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Vergnano [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  | 1,105,035 | 251,073
Mr Vergnano [Member] | Mr Newman Member [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Newman Member [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount | 297,851 | 7,335,430 | 7,670,351 | 5,537,669 |
PEO Actually Paid Compensation Amount | (6,155,142) | 934,313 | 9,839,552 | 10,256,484 |
Mr Newman Member [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Newman Member [Member] | Pension Adjustments Prior Service Cost |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Newman Member [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | (6,249,631) | (5,504,353) | (3,039,984) |
Mr Newman Member [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | 5,542,082 | 7,286,350 | 3,737,324 |
Mr Newman Member [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  | (4,188,551) | (231,485) | 3,508,735 |
Mr Newman Member [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Mr Newman Member [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (1,095,363) | 516,921 | 333,788 | 184,986 |
Mr Newman Member [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (5,293,120) | (1,929,442) |  |  |
Mr Newman Member [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (64,510) | (92,496) | 284,902 | 327,754 |
Mr Newman Member [Member] | Mr Newman Member [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Ms. Dignam [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount | 5,887,980 |  |  |  |
PEO Actually Paid Compensation Amount | 3,112,991 |  |  |  |
Ms. Dignam [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Ms. Dignam [Member] | Pension Adjustments Service Cost |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Ms. Dignam [Member] | Pension Adjustments Prior Service Cost |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Ms. Dignam [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 3,984,736 |  |  |  |
Ms. Dignam [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 1,981,568 |  |  |  |
Ms. Dignam [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (663,542) |  |  |  |
Ms. Dignam [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Ms. Dignam [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (160,152) |  |  |  |
Ms. Dignam [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Ms. Dignam [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 51,873 |  |  |  |
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Non-PEO NEO | Pension Adjustments Service Cost |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Non-PEO NEO | Pension Adjustments Prior Service Cost |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 688,272 | 1,042,701 | 1,130,702 | 1,139,675 | 1,807,220
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 376,061 | 549,601 | 1,482,246 | 1,697,677 | 3,537,581
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (150,317) | (246,002) | (164,478) | 2,182,023 | (157,388)
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (95,438) | 97,757 | 47,967 | 77,860 | (17,955)
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (113,044) | (1,178,272) |  |  |
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 8,961 | $ (19,450) | $ 107,817 | $ 206,615 | $ 54,340

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