Fair Value Measurements - Summary of Financial Assets and Liabilities Measured and Recorded at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Debt securities	$ 265,455	$ 225,715
The Notes, Due 2025 | Convertible Debt
Liabilities:
Interest Rate	2.25%
Convertible debt, fair value disclosures	$ 47,100
The Notes, Due 2027 | Convertible Debt
Liabilities:
Interest Rate	0.25%
Convertible debt, fair value disclosures	$ 525,300
The Notes, Due 2029 | Convertible Debt
Liabilities:
Interest Rate	1.25%
Convertible debt, fair value disclosures	$ 304,200
U.S government agencies
Assets:
Debt securities	265,455	223,222
Agency bonds
Assets:
Debt securities		2,493
Fair Value, Measurements, Recurring
Assets:
Foreign currency forward contracts designated as cash flow hedges (prepaid expenses and other current assets and other assets)	499	1,322
Total assets	382,664	351,543
Liabilities:
Foreign currency forward contracts designated as cash flow hedges (other current liabilities)	242	55
Total liabilities	242	55
Fair Value, Measurements, Recurring | U.S government agencies
Assets:
Debt securities	265,455	223,222
Fair Value, Measurements, Recurring | Agency bonds
Assets:
Debt securities		2,493
Fair Value, Measurements, Recurring | Money market funds
Assets:
Money market funds	116,710	124,506
Fair Value, Measurements, Recurring | Level 1
Assets:
Foreign currency forward contracts designated as cash flow hedges (prepaid expenses and other current assets and other assets)	0	0
Total assets	382,165	347,728
Liabilities:
Foreign currency forward contracts designated as cash flow hedges (other current liabilities)	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | U.S government agencies
Assets:
Debt securities	265,455	223,222
Fair Value, Measurements, Recurring | Level 1 | Agency bonds
Assets:
Debt securities		0
Fair Value, Measurements, Recurring | Level 1 | Money market funds
Assets:
Money market funds	116,710	124,506
Fair Value, Measurements, Recurring | Level 2
Assets:
Foreign currency forward contracts designated as cash flow hedges (prepaid expenses and other current assets and other assets)	499	1,322
Total assets	499	3,815
Liabilities:
Foreign currency forward contracts designated as cash flow hedges (other current liabilities)	242	55
Total liabilities	242	55
Fair Value, Measurements, Recurring | Level 2 | U.S government agencies
Assets:
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 2 | Agency bonds
Assets:
Debt securities		2,493
Fair Value, Measurements, Recurring | Level 2 | Money market funds
Assets:
Money market funds	0	0
Fair Value, Measurements, Recurring | Level 3
Assets:
Foreign currency forward contracts designated as cash flow hedges (prepaid expenses and other current assets and other assets)	0	0
Total assets	0	0
Liabilities:
Foreign currency forward contracts designated as cash flow hedges (other current liabilities)	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | U.S government agencies
Assets:
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 3 | Agency bonds
Assets:
Debt securities		0
Fair Value, Measurements, Recurring | Level 3 | Money market funds
Assets:
Money market funds	$ 0	$ 0