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Fair Value Measurements (Fair Values of the Company's Financial Assets and Liabilities) (Details) - Recurring Basis - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investments $ 6,016 $ 4,600
Corporate, agency and municipal bonds 33,632 14,931
Total assets measured at fair value 280,162 158,213
Interest rate swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps related to variable rate loans 3,387 6,048
Certificates of deposit    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Restricted short-term investments 2,200 2,200
Money market    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash equivalents 230,668 130,199
Restricted cash 4,259 235
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets measured at fair value 234,927 130,434
Level 1 | Money market    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash equivalents 230,668 130,199
Restricted cash 4,259 235
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investments 6,016 4,600
Corporate, agency and municipal bonds 33,632 14,931
Total assets measured at fair value 45,235 27,779
Level 2 | Interest rate swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps related to variable rate loans 3,387 6,048
Level 2 | Certificates of deposit    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Restricted short-term investments $ 2,200 $ 2,200