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Related Party Transactions	3 Months Ended
Related Party Transactions	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 17. RELATED PARTY TRANSACTIONS As part of the transaction discussed in Note 10, Convertible Notes, an affiliate of one member of the Company's board of directors purchased an aggregate of $30.0 million of the Notes. The affiliated entity is a Qualified Institutional Buyer which purchased and holds the Notes at March 31, 2019.