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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 25, 2019, our primary third-party carrier payable agent, IPS Worldwide, LLC, filed a petition for Chapter 11 bankruptcy. As a result, the Company recorded a contingent loss in our 2018 consolidated statement of operations for $4.3 million, which reflects the best estimate of our exposure based on the facts available to management.