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Cash, Cash Equivalents, and Restricted Cash (Tables)
3 Months Ended
Mar. 31, 2020
Cash, Cash Equivalents, and Restricted Cash  
Schedule of reconciliation of cash, cash equivalents, and restricted cash

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March 31, 

(In thousands)

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2020

​

2019

Cash and cash equivalents

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$

332,798

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$

223,235

Restricted cash

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833

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​

833

Total cash, cash equivalents, and restricted cash shown on the condensed
consolidated statements of cash flows

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$

333,631

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$

224,068