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Supplementary Balance Sheet Detail (Tables)

12 Months Ended

Dec. 31, 2020

Balance Sheet Related Disclosures [Abstract]

Schedule Of Amounts Recognized In Balance Sheet

The following tables present supplementary balance sheet details:

			As of December 31, 2020						As of December 31, 2019
			(Dollars in thousands)
Inventories *:
Raw materials and supplies			$	101,098					$	129,879
Work in process			110,331						131,435
Finished goods			54,535						52,334
			$	265,964					$	313,648
Prepaid expenses and other current assets:
Prepaid expenses			$	9,242					$	9,986
Value added tax and other indirect taxes receivable			10,666						13,890
Spare parts inventory			11,825						12,738
Other current assets			3,381						4,332
			$	35,114					$	40,946
Property, plant and equipment:
Land and improvements			$	50,285					$	46,548
Buildings			80,041						71,784
Machinery and equipment and other			621,478						567,715
Construction in progress			33,098						47,370
			$	784,902					$	733,417
Other accrued liabilities:
Payrolls (including incentive programs)			$	13,159					$	11,801
Employee benefits			7,128						7,416
Deferred revenue			13,056						11,776
Other			23,158						17,342
			$	56,501					$	48,335
Other long term obligations:
Postretirement benefits			$	15,669					$	16,528
Pension and related benefits			37,847						37,431
Other			27,962						18,603
			$	81,478					$	72,562

Schedule Of Analysis Of The Allowance For Doubtful Accounts

The following table presents an analysis of the allowance for doubtful accounts:

			2020						2019						2018
Balance at beginning of year			$	5,474					$	1,129					$	1,097
ASC 326 adoption impact			2,026						—						—
Additions			1,458						4,636						122
Deductions			(715)						(291)						(90)
Balance at end of year			$	8,243					$	5,474					$	1,129

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- Definition

Allowance For Doubtful Accounts Receivable Rollforward

+ References

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- Definition

Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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