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Consolidated Statements of Cash Flows (Parenthetical) £ in Millions, $ in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 22, 2016 USD ($) promissory_note | Nov. 30, 2014 GBP (£) | Nov. 30, 2014 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 GBP (£) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Nov. 30, 2014 USD ($)
Supplemental Schedule of Noncash Investing and Financing Activities |  |  |  |  |  |  |  |
Cash dividends declared, but not yet paid |  |  |  | $ 4.1 |  | $ 4.2 |  |
Accrued capital expenditures |  |  |  | $ 0.4 |  | 0.8 |  |
Previous percentage ownership of noncontrolling owners |  |  |  | 49.00% |  |  |  |
Settlement of promissory notes | $ 17.7 |  |  |  |  |  |  |
Escrow account utilized for payment of assumed pension exit obligation |  | £ 8.8 | $ 13.8 |  | £ 0.8 | 1.1 |  |
Escrow account balance |  | £ 13.0 |  |  |  |  |  | $ 21.7
Assets acquired, net of cash |  |  |  | $ 508.8 |  | 154.3 | $ 611.0 |
Liabilities assumed |  |  |  | $ 64.5 |  | $ 61.8 | $ 314.8 |
Tobras | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |  |
Supplemental Schedule of Noncash Investing and Financing Activities |  |  |  |  |  |  |  |
Number of promissory notes settled in acquisition item | promissory_note | 2 |  |  |  |  |  |  |

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