Categories of Financial Assets and Financial Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of financial assets

The following schedules disclose our financial assets categories for the presented periods:

	Year Ended December 31, 2015
	Carrying Value		Loans and receivables		Fair value
	(in thousands)
Cash and cash equivalents	$	353,537	$	—	$	353,537
Trade receivables, net of allowances	261,581		261,581		$	261,581
Other taxes	29,552		29,552		$	29,552
Other current assets	16,030		16,030		$	16,030
Financial assets	17,184		17,184		$	17,184
Total	$	677,884	$	324,347	$	677,884

	Year Ended December 31, 2016
	Carrying Value		Loans and receivables		Fair value
	(in thousands)
Cash and cash equivalents	$	270,317	$	—	$	270,317
Trade receivables, net of allowances	397,244		397,244		$	397,244
Other taxes	52,942		52,942		$	52,942
Other current assets	19,340		19,340		$	19,340
Financial assets	17,029		17,029		$	17,029
Total	$	756,872	$	486,555	$	756,872

Schedules of Concentration of Risk, by Risk Factor

For each period presented, the aging of trade receivables and allowances for doubtful accounts is as follows:

	Year Ended December 31,
	2015									2016
	Gross value		%		Allowance			%		Gross value		%		Allowance			%
	(in thousands)				(in thousands)					(in thousands)				(in thousands)
Not yet due	$	193,603	72.2	%	$	—		—	%	$	265,600	65.0	%	$	—		—	%
0 - 30 days	$	53,803	20.1	%	$	—		—	%	$	92,163	22.5	%	$	(49	)	0.4	%
31 - 60 days	$	8,287	3.1	%	$	—		—	%	$	19,747	4.8	%	$	(182	)	1.6	%
61 - 90 days	$	2,574	1.0	%	$	(2	)	—	%	$	6,055	1.5	%	$	(191	)	1.6	%
> 90 days	$	9,578	3.6	%	$	(6,262	)	100.0	%	$	25,277	6.2	%	$	(11,176	)	96.4	%
Total	$	267,845	100.0	%	$	(6,264	)	100.0	%	$	408,842	100.0	%	$	(11,598	)	100.0	%

The maximum exposure to credit risk at the end of each reported period is represented by the carrying amount of financial assets, and summarized in the following table:

	Year Ended December 31,
	2015		2016
	(in thousands)
Cash and cash equivalents	$	353,537	$	270,317
Trade receivables, net of allowances	261,581		397,244
Other taxes	29,552		52,942
Other current assets	16,030		19,340
Non-current financial assets	17,184		17,029
Total	$	677,884	$	756,872

Schedule of financial liabilities

Financial Liabilities

	Year Ended December 31, 2015
	Carrying Value		Fair value
	(in thousands)
Trade payables	$	246,382	$	246,382
Other taxes	30,463		30,463
Employee - related payables	42,275		42,275
Other current liabilities	15,531		15,531
Financial liabilities	10,428		10,428
of which derivative financial instruments	553		553
Total	$	345,079	$	345,079

	Year Ended December 31, 2016
	Carrying Value		Fair value
	(in thousands)
Trade payables	$	365,788	$	365,788
Other taxes	44,831		44,831
Employee - related payables	55,874		55,874
Other current liabilities	30,221		30,221
Financial liabilities	85,580		85,580
of which derivative financial instruments	1,968		$	1,968
Total	$	582,294	$	582,294