Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of Foreign Currency Transaction Gains and Losses

The following table summarizes foreign currency transaction gains and losses recognized in the income statement:

(in thousands)	2017	2016	2015
Losses/(gains) included in:
Selling, general, and administrative expenses	$4,127	($381)	(5,090)
Other expense/(income), net	4,634	(3,532)	1,496
Total transaction losses/(gains)	$8,761	($3,913)	($3,594)

Schedule of foreign currency gains and losses on long-term intercompany loans

The following table presents foreign currency gains and losses on long-term intercompany loans that were recognized in Other comprehensive income:

(in thousands)	2017	2016	2015
Gain/(loss) on long-term intercompany loans	$1,867	$3,515	($5,225)

Schedule of Accounts Receivable

As of December 31, 2017 and 2016, Accounts receivable consisted of the following:

(in thousands)	2017		2016
Trade and other accounts receivable	$152,375		$146,460
Bank promissory notes	20,255		15,759
Revenue in excess of progress billings	37,964		15,926
Allowance for doubtful accounts	(7,919	)	(6,952	)
Total accounts receivable	$202,675		$171,193

Schedule of Inventories

As of December 31, 2017 and 2016, inventories consisted of the following:

(in thousands)	2017	2016
Raw materials	$42,215	$37,691
Work in process	65,448	58,715
Finished goods	28,856	37,500
Total inventories	$136,519	$133,906