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Fair Value Measurements - Unobservable Input Reconciliation (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Level 3 Changes  
Balance, beginning of year $ 9,398
Total gains or losses (realized/unrealized):  
Included in earnings 0
Included in other comprehensive income (340)
Purchases, sales, issuances and settlements, net (56)
Transfers in and/or out of Level 3 1,000
Balance as of end of period $ 10,002