Other Noncurrent Assets - Other Noncurrent Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Other noncurrent assets:
Land held for development	$ 126.4	$ 129.2
Operating lease right-of-use assets	32.0
Accrued insurance recovery related to litigation	15.6
Restricted cash and cash equivalents	8.2	8.9
Land contract receivables	4.0	9.1
IBNR receivables	7.0	6.0
Marketable securities	5.2	4.8
Pension asset	3.3	2.7
Notes receivable - OPA	10.5	1.9
Other	15.0	12.7
Total	$ 227.2	$ 175.3

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Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) of amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

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Amount of lessee's right to use underlying asset under operating lease.

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