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Organization and Summary of Significant Accounting Policies - Impact of Adopted Standard (Details) - USD ($) $ in Thousands | Jan. 01, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Accounting Principle [Line Items] |  |  |
Operating Lease, Liability, Current | $ 10,300 | $ 10,373 | $ 0
Operating lease right-of-use assets | 66,008 | 63,851 | 0
Accrued Liabilities | 53,114 | 52,996 | 43,047
Other long-term liabilities | 5,712 | 9,786 | 9,562
Long-term operating lease liabilities | 59,791 | $ 57,470 | $ 0
Lease Exit Costs Obligations | 100 |  |
Deferred Rent Credit, Current | 100 |  |
Pre-Adjustment |  |  |
Accounting Principle [Line Items] |  |  |
Operating lease right-of-use assets | 0 |  |
Other long-term liabilities | 9,562 |  |
Long-term operating lease liabilities | 0 |  |
Adjustment | Accounting Standards Update 2016-02 |  |  |
Accounting Principle [Line Items] |  |  |
Operating lease right-of-use assets | 66,008 |  |
Accrued Liabilities | 10,067 |  |
Other long-term liabilities | (3,850) |  |
Long-term operating lease liabilities | $ 59,791 |  |

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