Leases - Schedule of Lease Cost (Details)	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Short-term lease cost	$ 2,500,000
Operating lease cost	1,500,000
Total lease cost	4,000,000.0
Cash paid for amounts included in the measurement of lease liabilities	1,000,000.0
ROUAs obtained in exchange for lease obligations	$ 0.8
Weighted average remaining lease term	7 years 2 months 12 days
Weighted average discount rate	4.00%