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Business Disposition - Schedule of Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
ASSETS |  |
Current assets | $ 921.0 | $ 837.4
Restricted cash | 35.2 | 24.2
Property and equipment, net | 656.9 | 654.5
LIABILITIES |  |
Current maturities of long-term debt | 7.6 | 7.8
Long-term debt | 993.2 | 957.2
Contran | Trade Accounts Payables |  |
LIABILITIES |  |
Payable to Contran | 32.5 | 31.4
Waste Management |  |
ASSETS |  |
Current assets | 14.4 | 17.2
Restricted cash | 23.0 | 21.6
Property and equipment, net | 135.9 | 138.5
LIABILITIES |  |
Current maturities of long-term debt | 3.2 | 3.3
Long-term debt | 67.2 | 68.0
Accrued noncurrent closure and post closure costs | 30.0 | 29.4
Waste Management | Capitalized Operating Permits |  |
ASSETS |  |
Operating permits | 42.4 | 42.9
Waste Management | Contran | Trade Accounts Payables |  |
LIABILITIES |  |
Payable to Contran | $ 32.5 | $ 31.4

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