Cash and Cash Equivalents and Fair Value of Financial Instruments (Details) - USD ($) |
Sep. 30, 2020 |
Sep. 25, 2020 |
Dec. 31, 2019 |
Jun. 30, 2016 |
---|---|---|---|---|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Cash and cash equivalents | $ 629,171,000 | $ 127,210,000 | ||
Interest Rate Swap | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Notional amount | $ 100,000,000.0 | |||
Fixed interest rate | 0.80% | |||
Interest Rate Swap | LIBOR | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Variable rate floor | 0.00% | |||
Convertible Senior Notes | Convertible Debt | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Fair value of long-term debt | 592,200,000 | |||
Carrying value of debt | $ 462,115,000 | $ 461,800,000 |