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Leases - Other Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 3.1
Operating cash flows from finance leases	0.2
Leased assets obtained in exchange for new finance lease liabilities	0.5
Leased assets obtained in exchange for new operating lease liabilities	$ 3.2

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Amount of interest paid on finance lease liability.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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