Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measures (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)

v3.23.1
Fair Value Measures (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure $ 301,424 $ 172,171 $ 215,702
Liabilities, Fair Value Disclosure 6,675 5,552 5,696
Fair Value, Inputs, Level 1 [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 129,332 141,685 22,844
Liabilities, Fair Value Disclosure 0 0 0
Fair Value, Inputs, Level 2 [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 172,092 30,486 192,858
Liabilities, Fair Value Disclosure 6,675 5,552 5,696
Fair Value, Inputs, Level 3 [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Liabilities, Fair Value Disclosure 0 0 0
Money Market Funds [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 106,092 120,481 142
Money Market Funds [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 284 80 145
Money Market Funds [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 1,712 1,456 1,383
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 106,092 120,481 142
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 284 80 145
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 1,712 1,456 1,383
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
US Treasury Securities [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 49,695    
US Treasury Securities [Member] | Available-for-sale Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 98,746   174,435
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0    
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Available-for-sale Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0   0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 49,695    
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Available-for-sale Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 98,746   174,435
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0    
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Available-for-sale Securities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0   0
Derivative Financial Instruments, Assets [Member] | Other Current Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 17,716 23,333 11,072
Derivative Financial Instruments, Assets [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 5,935 7,153 7,351
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Other Current Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Other Current Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 17,716 23,333 11,072
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 5,935 7,153 7,351
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Other Current Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Liabilities [Member] | Accrued Liabilities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 4,887 3,782 4,313
Derivative Financial Instruments, Liabilities [Member] | Other Noncurrent Liabilities      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 1,788 1,770 1,383
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 1 [Member] | Accrued Liabilities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 1 [Member] | Other Noncurrent Liabilities      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Accrued Liabilities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 4,887 3,782 4,313
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Other Noncurrent Liabilities      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 1,788 1,770 1,383
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] | Accrued Liabilities [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 0 0 0
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] | Other Noncurrent Liabilities      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Liabilities, Fair Value Disclosure 0 0 0
Mutual Fund | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 482 642 444
Mutual Fund | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 20,762 19,026 20,730
Mutual Fund | Fair Value, Inputs, Level 1 [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 482 642 444
Mutual Fund | Fair Value, Inputs, Level 1 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 20,762 19,026 20,730
Mutual Fund | Fair Value, Inputs, Level 2 [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Mutual Fund | Fair Value, Inputs, Level 2 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Mutual Fund | Fair Value, Inputs, Level 3 [Member] | Short-term Investments [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure 0 0 0
Mutual Fund | Fair Value, Inputs, Level 3 [Member] | Other Noncurrent Assets [Member]      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Assets, Fair Value Disclosure $ 0 $ 0 $ 0