Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Schedule of Accounts Receivable, Net of Allowance, and Contract Assets

The following table provides details of accounts receivable, net of allowance, and contract assets (together, “accounts receivable, net”) as of the dates indicated (in millions):

	September 30, 2020		December 31, 2019
Contract billings	$	939.6	$	860.4
Less allowance	(22.5)		(10.1)
Accounts receivable, net of allowance	$	917.1	$	850.3
Retainage	313.1		345.2
Unbilled receivables	706.8		679.4
Contract assets	$	1,019.9	$	1,024.6