Leases - Cash Flows and Additional Details (Details) $ in Millions	6 Months Ended
Jun. 30, 2019 USD ($)
Supplemental Cash Flow Information for Operating Leases
Operating cash flows from operating leases	$ 10.4
ROU assets obtained in exchange for operating lease obligations	$ 2.5
Weighted average remaining lease term	8 years
Weighted average discount rate (percent)	5.30%

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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.

+ References

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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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-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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