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DEBT - Narrative (Details) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
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Dec. 31, 2025 USD ($) | Jun. 30, 2022 USD ($) payment $ / shares | Apr. 01, 2022 USD ($) shares | May 02, 2017 USD ($) $ / shares | Jan. 06, 2022 | Dec. 31, 2021 USD ($) | Jul. 31, 2020 USD ($) $ / shares | Mar. 31, 2017 USD ($) | Jun. 30, 2022 USD ($) d payment $ / shares shares | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) d segment payment $ / shares shares | Jun. 30, 2021 USD ($) | Dec. 31, 2022 USD ($) | Dec. 07, 2026 USD ($) | Jan. 07, 2022 USD ($) | Dec. 30, 2021 USD ($) | Dec. 06, 2021 $ / shares shares
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement period - convertible debt conversion request |  |  |  |  |  |  |  |  |  |  | 40 days |  |  |  |  |  |
Closing sale price (in dollars per share) | $ / shares |  | $ 58.30 |  |  |  |  |  |  | $ 58.30 |  | $ 58.30 |  |  |  |  |  |
Amortization of debt discount (premium) |  |  |  |  |  |  |  |  | $ 706,000 | $ 5,744,000 | $ 1,412,000 | $ 11,401,000 |  |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of convertible securities (in shares) | shares |  |  | 101,521 |  |  |  |  |  | 102,000 |  | 102,000 |  |  |  |  |  |
Adjustments to APIC, convertible debt |  |  | $ 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Senior Notes Due 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 0.75% |  |  |  |  |  |  | 0.75% |  | 0.75% |  |  |  |  |  |
Initial conversion price of notes into common stock (in dollars per share) | $ / shares |  | $ 71.78 |  |  |  |  | $ 71.78 |  | $ 71.78 |  | $ 71.78 |  |  |  |  |  |
Convertible debt, premium on common stock |  |  |  |  |  |  | 32.50% |  |  |  |  |  |  |  |  |  |
Closing sale price (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 54.17 |  |  |  |  |  |  |  |  |  |
Market price of principal amount of notes |  | 1.038 |  |  |  |  |  |  | 1.038 |  | 1.038 |  |  |  |  |  |
Initial conversion rate of common stock per $1,000 of principal amount of Notes |  |  |  |  |  |  |  |  |  |  | 0.0139324 |  |  |  |  |  |
Convertible Senior Notes Due 2025 | Debt Redemption Terms Prior to February 3, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Threshold percentage stock price trigger |  |  |  |  |  |  |  |  | 130.00% |  |  |  |  |  |  |  |
Threshold trading days | d |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |
Threshold consecutive trading days | d |  |  |  |  |  |  |  |  | 30 |  |  |  |  |  |  |  |
Convertible Senior Notes Due 2025 | Debt Redemption Terms on or after August 1, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Threshold percentage stock price trigger |  |  |  |  |  |  |  |  |  |  | 130.00% |  |  |  |  |  |
Threshold trading days | segment |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |
Threshold consecutive trading days | d |  |  |  |  |  |  |  |  |  |  | 30 |  |  |  |  |  |
Debt instrument, percentage of principal amount for computation of redemption price |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Convertible Senior Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 2.375% |  |  |  |  |  |  | 2.375% |  | 2.375% |  |  |  |  |  |
Term Loan B Facility Due 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leverage ratio, maximum |  | 1.75 |  |  |  |  |  |  | 1.75 |  | 1.75 |  |  |  |  |  |
Leverage ratio, maximum, value |  | $ 150,000,000 |  |  |  |  |  |  | $ 150,000,000 |  | $ 150,000,000 |  |  |  |  |  |
Weighted average interest rate, at point in time |  | 7.81% |  |  |  |  |  |  | 7.81% |  | 7.81% |  |  |  |  |  |
Term Loan B Facility Due 2026 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread two on variable rate |  |  |  |  |  |  |  |  |  |  | 7.00% |  |  |  |  |  |
Basis spread one on variable rate |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |
Term Loan B Facility Due 2026 | Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |  |  |
Term Loan B Facility Due 2026 | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable rate |  |  |  |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |
Term Loan B Facility Due 2026 | Minimum | Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable rate |  |  |  |  |  |  |  |  |  |  | 1.75% |  |  |  |  |  |
Term Loan B Facility Due 2026 | Minimum | Federal Reserve Bank Of NY, Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |
Convertible Senior Notes Due 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, percentage of principal amount for computation of redemption price |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Convertible Senior Notes Due 2024 | Flexion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion price of notes into common stock (in dollars per share) | $ / shares |  |  |  | $ 26.78 |  |  |  |  |  |  |  |  |  |  |  |  | $ 317.40
Initial conversion rate of common stock per $1,000 of principal amount of Notes |  |  |  | 0.0373413 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt conversion, converted instrument, warrants or rights issued, per principal amount (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37.3413
Convertible Senior Notes Due May 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 3.375% |  |  |  |  |  |  | 3.375% |  | 3.375% |  |  |  |  |  |
Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 755,654,000 |  |  |  | $ 1,049,230,000 |  |  | $ 755,654,000 |  | $ 755,654,000 |  |  |  |  |  |
Unsecured Debt | Convertible Senior Notes Due 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 402,500,000 |  |  |  |  |  |  |  |  |  |
Debt instrument, unamortized discount |  | $ 0 |  |  |  | 64,718,000 |  |  | $ 0 |  | $ 0 |  |  |  |  |  |
Stated interest rate (as a percent) |  | 0.75% |  |  |  |  | 0.75% |  | 0.75% |  | 0.75% |  |  |  |  |  |
Debt issued in private placement |  |  |  |  |  |  | $ 390,000,000 |  |  |  | $ 402,500,000 |  |  |  |  |  |
Long-term debt |  | $ 394,894,000 |  |  |  | 330,627,000 |  |  | $ 394,894,000 |  | 394,894,000 |  |  |  |  |  |
Unsecured Debt | Convertible Senior Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, unamortized discount |  | $ 0 |  |  |  | 1,920,000 |  |  | $ 0 |  | $ 0 |  |  |  |  |  |
Stated interest rate (as a percent) |  | 2.375% |  |  |  |  | 2.375% | 2.375% | 2.375% |  | 2.375% |  |  |  |  |  |
Debt issued in private placement |  |  |  |  |  |  |  | $ 345,000,000 |  |  |  |  |  |  |  |  |
Debt instrument, repurchased face amount |  |  |  |  |  |  | $ 185,000,000 |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  | 156,900,000 |  |  |  | $ 211,100,000 |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 0 |  |  |  | 157,857,000 |  |  | $ 0 |  | $ 0 |  |  |  |  |  |
Extinguishment of debt, amount |  |  | 160,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount (premium) |  |  | $ (4,800,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt | Convertible Senior Notes Due 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  | 3.375% |  |  |  |  |  |  | 3.375% |  | 3.375% |  |  |  |  |  |
Repurchase amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 192,600,000 |  |
Unsecured Debt | Convertible Senior Notes Due 2024 | Flexion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  | $ 201,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  |  |  | 3.375% |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt | Convertible Senior Notes Due May 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 8,640,000 |  |  |  | $ 201,249,000 |  |  | $ 8,640,000 |  | $ 8,640,000 |  |  |  |  |  |
Secured Debt | Term Loan B Facility Due 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 375,000,000 |  |  |  |  |  |  |  |  |  |  |
Proceeds from lines of credit |  |  |  |  |  | 363,800,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument, unamortized discount |  | 9,649,000 |  |  |  | 11,060,000 |  |  | 9,649,000 |  | 9,649,000 |  |  |  |  | $ 11,200,000 |
Periodic payment, principal |  | $ 9,400,000 |  |  |  |  |  |  | $ 9,400,000 |  | $ 9,400,000 |  |  |  |  |  |
Number of payments in next fiscal year | payment |  | 3 |  |  |  |  |  |  | 3 |  | 3 |  |  |  |  |  |
Prepayment penalty, percent, year 1 |  | 2.00% |  |  |  |  |  |  | 2.00% |  | 2.00% |  |  |  |  |  |
Prepayment penalty, percent, year 2 |  | 2.00% |  |  |  |  |  |  | 2.00% |  | 2.00% |  |  |  |  |  |
Prepayment penalty, percent, year 3 and thereafter |  | 1.00% |  |  |  |  |  |  | 1.00% |  | 1.00% |  |  |  |  |  |
Long-term debt |  | $ 352,120,000 |  |  |  | $ 359,497,000 |  |  | $ 352,120,000 |  | $ 352,120,000 |  |  |  |  |  |
Secured Debt | Term Loan B Facility Due 2026 | Scenario, Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Periodic payment, principal | $ 14,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balloon payment to be paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 188,000,000 |  |  |
Secured Debt | Term Loan B Facility Due 2026 | Scenario, Forecast | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Periodic payment, principal |  |  |  |  |  |  |  |  |  |  |  |  | $ 28,100,000 |  |  |  |

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- Definition Represents the percentage of premium added to the last reported sale price of the common stock of the entity to arrive at the conversion price of the debt instrument. + References No definition available. + Details
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- Definition Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 25 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=123466103&loc=SL6014347-161799 + Details
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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1F -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
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