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Restricted Cash	3 Months Ended
Restricted Cash	Mar. 31, 2019
Cash and Cash Equivalents [Abstract]
Restricted Cash	Restricted Cash As of March 31, 2019 and December 31, 2018, the Condensed Consolidated Balance Sheets included approximately $2.5 million in restricted cash. Restricted cash is used primarily to collateralize standby letters of credit for certain leases and insurance policies.