Long-term Debt - Narrative (Details)
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3 Months Ended |
9 Months Ended |
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Jun. 30, 2026 |
Jun. 02, 2026
USD ($)
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Jan. 18, 2024 |
Dec. 31, 2026 |
Sep. 30, 2026
USD ($)
Days
$ / shares
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Jun. 30, 2026
USD ($)
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Sep. 30, 2025
USD ($)
$ / shares
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Sep. 30, 2026
USD ($)
Days
$ / shares
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Sep. 30, 2025
USD ($)
$ / shares
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Nov. 18, 2026
USD ($)
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May 28, 2026
USD ($)
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Dec. 31, 2025
USD ($)
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Mar. 01, 2022
USD ($)
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| Debt Instrument [Line Items] |
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| Interest Expense, Operating and Nonoperating |
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$ 18,600,000
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$ 10,000,000.0
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$ 42,000,000.0
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$ 32,600,000
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| Finance lease obligations |
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16,200,000
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16,200,000
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$ 20,800,000
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| Cash paid for interest, net of capitalized interest |
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7,800,000
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$ 10,900,000
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41,100,000
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$ 35,000,000.0
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| 2024 Credit Agreement Availability |
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$ 341,800,000
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$ 341,800,000
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| Dividends declared per share | $ / shares |
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$ 0.075
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$ 0.075
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$ 0.225
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$ 0.225
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| Interest Costs Capitalized |
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$ 0
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$ 2,000,000.0
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$ 2,100,000
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$ 5,900,000
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| Debt Issuance Costs, Gross |
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1,900,000
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1,900,000
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| Induced Conversion of Convertible Debt Expense |
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3,300,000
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0
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20,500,000
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0
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| Payment of Capped Call Transactions |
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16,700,000
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0
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16,700,000
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| Initial Capped Call Price Premium Percentage |
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75.00%
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| Common Stock, Weighted Average, Price |
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$ 28.9197
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| Initial Capped Call Price Premium |
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$ 50.6095
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| Payments of debt issuance and other deferred financing costs |
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14,600,000
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1,800,000
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| Fair Value, Option, Changes in Fair Value, Gain (Loss) |
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$ 7,200,000
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0
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7,200,000
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0
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| Accretion of debt discount |
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$ 4,400,000
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| Letter of Credit |
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| Debt Instrument [Line Items] |
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| Stated interest rate |
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0.75%
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0.75%
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| Line of credit facility, maximum borrowing capacity |
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$ 250,000,000.0
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$ 250,000,000.0
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| Letters of credit outstanding, amount |
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58,200,000
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$ 58,200,000
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| Revolving credit facility |
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| Debt Instrument [Line Items] |
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| Debt instrument, fronting fee |
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0.125%
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| Line of Credit Facility, Commitment Fee Percentage |
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0.50%
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| Payments of debt issuance and other deferred financing costs |
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$ 5.7
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| Proceeds from Lines of Credit |
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$ 110,000,000.0
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| Repayments of Lines of Credit |
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110,000,000.0
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| Revolving credit facility | Pre amendment |
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| Debt Instrument [Line Items] |
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| Line of credit facility, maximum borrowing capacity |
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320,000,000.0
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320,000,000.0
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| Revolving credit facility | Post amendment |
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| Debt Instrument [Line Items] |
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| Line of credit facility, maximum borrowing capacity |
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400,000,000.0
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400,000,000.0
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| Maximum | Revolving credit facility |
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| Debt Instrument [Line Items] |
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| Basis spread on variable rate |
4.00%
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4.25%
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| Maximum | Revolving credit facility | Secured Overnight Financing Rate (SOFR) |
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| Debt Instrument [Line Items] |
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| Basis spread on variable rate |
4.00%
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4.25%
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| Maximum | Revolving credit facility | Base Rate |
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| Debt Instrument [Line Items] |
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| Basis spread on variable rate |
3.00%
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3.25%
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| Minimum | Revolving credit facility |
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| Debt Instrument [Line Items] |
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| Basis spread on variable rate |
3.25%
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3.50%
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| Minimum | Revolving credit facility | Secured Overnight Financing Rate (SOFR) |
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| Debt Instrument [Line Items] |
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| Basis spread on variable rate |
3.25%
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3.50%
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| Minimum | Revolving credit facility | Base Rate |
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| Debt Instrument [Line Items] |
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| Basis spread on variable rate |
2.25%
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2.50%
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| 2028 Convertible Notes, including bifurcated conversion option and debt discount |
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| Debt Instrument [Line Items] |
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| Interest Expense, Operating and Nonoperating |
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600,000
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2,600,000
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5,200,000
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7,800,000
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| 2028 Convertible Notes, including bifurcated conversion option and debt discount | Subsequent Event | Senior Notes |
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| Debt Instrument [Line Items] |
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| Principal amount |
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$ 39,900,000
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| 0.500% Convertible Notes due June 2031 |
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| Debt Instrument [Line Items] |
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| Interest Expense, Operating and Nonoperating |
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$ 300,000
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$ 0
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$ 400,000
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0
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| Debt Instrument, Convertible, Threshold Trading Days | Days |
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20
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| Debt Instrument, Convertible, Threshold Consecutive Trading Days | Days |
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30
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40
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| Senior Notes | 2028 Convertible Notes, including bifurcated conversion option and debt discount |
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| Debt Instrument [Line Items] |
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| Stated interest rate |
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3.25%
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3.25%
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| 2028 Convertible Notes |
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$ 37,100,000
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$ 37,100,000
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320,000,000.0
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| Principal amount |
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$ 320,000,000.0
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| Debt Instrument, Convertible, Conversion Ratio |
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52.8309
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| Debt Instrument, Repurchased Face Amount |
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241,200,000
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$ 280,100,000
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280,100,000
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| Induced Conversion of Convertible Debt Expense |
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3,300,000
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$ 17,200,000
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| Repayments of Debt |
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386,800,000
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58,100,000
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| Induced conversion expense |
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16,200,000
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131,100,000
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| Deferred Debt Issuance Cost, Writeoff |
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2,700,000
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300,000
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| Debt Instrument Repurchase Outstanding Amount |
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38,900,000
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38,900,000
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| Convertible Debt, Fair Value Disclosures |
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$ 20,700,000
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$ 20,700,000
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| Additional conversion rate upon make-whole fundamental change |
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2.0971
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2.0971
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| Senior Notes | 2028 Convertible Notes, including bifurcated conversion option and debt discount | Subsequent Event |
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| Debt Instrument [Line Items] |
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| Debt Instrument, Convertible, Conversion Ratio |
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54.928
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| Senior Notes | 0.500% Convertible Notes due June 2031 |
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| Debt Instrument [Line Items] |
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| Stated interest rate |
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0.50%
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0.50%
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| 2028 Convertible Notes |
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$ 250,000,000.0
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$ 250,000,000.0
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$ 0
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| Principal amount |
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$ 250,000,000.0
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| Debt Instrument, Convertible, Conversion Ratio |
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26.0970
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| Debt Issuance Costs, Gross |
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$ 7,000,000.0
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7,000,000.0
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| Debt Instrument, Repurchased Face Amount |
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$ 241,200,000
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| Induced Conversion of Convertible Debt Expense |
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20,500,000
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$ 0
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| Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |
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130.00%
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| Percentage Of Closing Sale Price In Excess Of Convertible Notes |
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98.00%
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| Initial Conversion Price Premium Percentage |
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32.50%
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| Initial Conversion Price Premium Price |
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$ 38.32
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38.32
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| Minimum Principal Amount Outstanding |
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$ 75,000,000
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$ 75,000,000
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| Common Stock, Weighted Average, Price |
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$ 28.9197
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| Debt Instrument, Redemption Price, Percentage |
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100.00%
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| Outstanding principal threshold percentage |
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15.00%
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