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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2019
Summary of Significant Accounting Policies [Abstract] |
Impact of Adopting ASU 2016-02 on Consolidated Balance Sheet | Adoption of the new standard resulted in the following changes in our consolidated balance sheet as of January 1, 2019 (in thousands):
|  | Balance at December 31, 2018 |  |  | Adjustments Due to Adoption of ASU 2016-02 |  |  | Balance at January 1, 2019 |
Balance Sheet |  |  |  |  |  |  |  |  |
Operating lease right-of-use asset |  | $ | — |  |  | $ | 38,580 |  |  | $ | 38,580 |
Sundry payables and accrued expenses |  |  | 31,033 |  |  |  | 7,232 |  |  |  | 38,265 |
Noncurrent operating lease liabilities |  |  | — |  |  |  | 31,348 |  |  |  | 31,348 |

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