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v3.20.2

Long Term Debt - Senior Notes, Capped Call Transaction and Interest Expense (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 31, 2020 USD ($) d $ / shares | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | May 01, 2019 USD ($) $ / shares | Jun. 30, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayment of credit facility | $ 439,900,000 |  |  |  |  |  |
Interest expense, net |  | $ (11,336,000) | $ (5,988,000) | $ (17,296,000) | $ (10,226,000) |  |
1.50% Convertible Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal | $ 500,000,000.0 |  |  |  |  |  |
Stated interest rate, percentage | 1.50% |  |  |  |  |  |
Proceeds from debt offering | $ 488,800,000 |  |  |  |  |  |
Payment of cap call transaction | $ 47,900,000 |  |  |  |  |  |
Initial conversion rate | 0.1018589 |  |  |  |  |  |
Debt conversion price (in usd per share) | $ / shares | $ 9.82 |  |  |  |  |  |
Trading days (whether or not consecutive) | d | 20 |  |  |  |  |  |
Consecutive trading days | d | 30 |  |  |  |  |  |
Percentage of stock price | 130.00% |  |  |  |  |  |
Business period | 5 days |  |  |  |  |  |
Measurement period | 5 days |  |  |  |  |  |
Measurement period, percentage | 98.00% |  |  |  |  |  |
Redemption price, percentage of principal repurchased | 100.00% |  |  |  |  |  |
Cap call transaction cap price per share (in usd per share) | $ / shares |  |  |  |  |  | $ 13.4750 |
Premium over last reported sale price, percentage | 75.00% |  |  |  |  |  |
Deferred financing costs |  | $ 9,611,000 | $ 0 | $ 9,611,000 | $ 0 | $ 9,700,000 |
Effective interest rate,percentage |  | 7.00% |  | 7.00% |  |  |
Deferred tax liability, net | $ 12,100,000 |  |  |  |  |  |
Decrease in valuation allowance | $ 12,100,000 |  |  |  |  |  |
1.50% Convertible Senior Notes | Additional Paid-in-Capital |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Deferred financing costs |  |  |  |  |  | 2,300,000 |
1.50% Convertible Senior Notes | Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Deferred financing costs |  |  |  |  |  | $ 12,000,000.0 |
3.250% Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal |  |  |  |  |  |  | $ 600,000,000.0
3.250% Senior Notes | Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Stated interest rate, percentage |  | 3.25% |  | 3.25% |  |  | 3.25%
Deferred financing costs |  |  |  |  |  |  | $ 5,300,000

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