Leases - Supplemental Cash Flow Information for Operating Leases (Details) $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 21.2
ROU assets obtained in exchange for operating lease obligations	$ 9.5
Weighted average remaining lease term	7 years
Weighted average discount rate (percent)	4.90%

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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.

+ References

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-Publisher FASB
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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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