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v3.19.3.a.u2

Note 2 - Summary of Accounting Policies (Details Textual) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Depreciation, Total | $ 32,265 | $ 25,296 | $ 23,127
Goodwill and Intangible Asset Impairment, Total | 0 | 0 | 0
Amortization of Financing Costs and Debt Discount Premium | 4,712 | 4,749 | 3,516
Deferred Costs Amortization Expense, Next Twelve Months | 2,598 |  |
Deferred Costs Amortization Expense, Year Two | 2,640 |  |
Deferred Costs Amortization Expense, Year Three | 2,689 |  |
Deferred Costs Amortization Expense, Year Four | 2,579 |  |
Deferred Costs Amortization Expense, Year Five | 2,508 |  |
Contract with Customer, Liability, Total | 9,952 | 14,174 |
Contract with Customer, Liability, Revenue Recognized | 9,589 |  |
Advertising Expense | 44,153 | 34,792 | 45,926
Research and Development Expense, Total | 68,394 | $ 50,019 | $ 42,869
Fair Value, Inputs, Level 2 [Member] |  |  |
Debt Instrument, Fair Value Disclosure, Total | 833,092 |  |
Term Loan [Member] |  |  |
Long-term Debt, Total | $ 812,953 |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 9.00% | 11.00% |
Revenue Benchmark [Member] | Customer Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 5.00% | 6.00% | 6.00%
Number of Major Customers | 0 | 0 | 0

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