Amount of direct write-downs of accounts receivable charged against the allowance.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Cash receipts from customers during the current period which are usually for sales of goods and services.

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Changes in Operations Australia Arrium (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2017	Mar. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Doubtful Accounts Receivable, Write-offs			$ 10,131	$ 6,317	$ 13,798
Arrium Limited [Member]
Proceeds from Customers	$ 900
Gain (Loss) Related to Litigation Settlement			$ 7,300
Australian Operations [Member]
Asset Impairment Charges		$ 13,000		$ 5,900
Australian Operations [Member] \| Arrium Limited [Member]
Allowance for Doubtful Accounts Receivable, Write-offs					$ 8,100