Guarantees (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Guarantees [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Letters of credit and surety bonds outstanding | At December 31, 2018 and 2017, we had letters of credit and surety bonds outstanding, which primarily guarantee various insurance activities as noted in the following table:
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