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Commitments and Contingencies
3 Months Ended
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies
Commitments and Contingencies
There have been no material changes in our purchase commitments described in our Annual Report on Form 10-K for the year ended December 31, 2018.
In the ordinary course of business, we may be subject to legal claims and regulatory actions that could have a material adverse effect on our business or financial position. We assess our potential liability in such situations by analyzing potential outcomes, assuming various litigation, regulatory and settlement strategies.  If we determine a loss is probable and its amount can be reasonably estimated, we accrue an amount equal to the estimated loss.
No losses and no provision for a loss contingency have been recorded to date.