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v3.19.1

Summary of Significant Accounting Policies - Marketable Software (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Decrease to amortization expense | $ (9.5) | $ (14.7)
Increase to operating income | 42.9 | 101.8
Decrease to consolidated net loss | $ (19.4) | $ 40.6
Decrease to diluted loss per share (in dollars per share) | $ (0.38) | $ 0.62
Adjustment |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Decrease to amortization expense | $ 4.4 |
Decrease to consolidated net loss | $ 4.4 |
Decrease to diluted loss per share (in dollars per share) | $ 0.08 |
Marketable Software |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Typical renewal period (on average) | 5 years |
Finite-lived intangible asset in process | $ 90.1 |
Finite-lived intangible asset remaining | $ 80.6 |
Weighted-average remaining life | 3 years 11 days |
Enterprise Software |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Estimated revenue-producing lives of enterprise software | 5 years |
Enterprise software product as percentage of total marketable software | 64.00% |
Enterprise Software | Previously Reported |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Estimated revenue-producing lives of enterprise software | 3 years |
Remaining Products Classified as Marketable Software |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Estimated revenue-producing lives of enterprise software | 3 years |

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