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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Lessee, Lease, Description [Line Items] |  |  |
Operating lease right-of-use assets | $ 167,911 |  | $ 125,947
Additional amount to be recognized at lease commencement for the lease liability | 182,200 |  | 132,600
Operating lease liability, current | 19,220 |  | 11,483
Operating lease liability, noncurrent | 162,950 |  | 121,075
Finance lease, right-of-use asset | $ 18,700 |  | 18,600
Finance lease, right-of-use asset, statement of financial position, extensible list | Other long-term assets, net |  |
Finance lease liability | $ 19,100 |  | 18,700
Finance lease liability, current | $ 5,900 |  | 4,700
Finance lease, liability, current, statement of financial position, extensible list | Other current liabilities |  |
Finance lease liability, noncurrent | $ 13,200 |  | $ 14,000
Finance lease, liability, noncurrent, statement of financial position, extensible list | Other long-term liabilities |  |
DOS Rule Investigation |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Estimated civil damages |  | $ 48,200 |
Loss Contingency Accrual | $ 10,000 |  |
Facility in La Jolla, CA |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Operating lease not yet commenced, asset | 22,900 |  |
Operating lease not yet commenced, liability | $ 22,900 |  |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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