Recently Issued Accounting Pronouncements (Cumulative Effect of Changes from Adoption of Topic 606) (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Jan. 01, 2018 |
Dec. 31, 2017 |
---|---|---|---|
Assets | |||
Deferred commissions, current and non-current | $ 25.1 | $ 22.7 | $ 22.7 |
Liabilities: | |||
Deferred income tax liability | 5.7 | ||
Equity: | |||
Retained earnings | 1,114.8 | 17.0 | 958.7 |
Balances without adoption of Topic 606 | |||
Assets | |||
Deferred commissions, current and non-current | 0.0 | 0.0 | |
Liabilities: | |||
Deferred income tax liability | 0.0 | ||
Equity: | |||
Retained earnings | $ 0.0 | ||
Adjustments due to Topic 606 | |||
Assets | |||
Deferred commissions, current and non-current | $ 25.1 | ||
Adjustments due to Topic 606 | ASU 2014-09 | |||
Assets | |||
Deferred commissions, current and non-current | 22.7 | ||
Liabilities: | |||
Deferred income tax liability | 5.7 | ||
Equity: | |||
Retained earnings | $ 17.0 |