CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash from operating activities
Net income		$ 6,150	$ 12,537	$ 22,578	$ 33,938
Non-cash and non-operating items		33,083	28,961	65,911	53,959
- Amortization and provisions		27,907	18,282	54,951	37,926
- Net gain or loss on disposal of non-current assets		(123)	0	2,143	0
- Equity awards compensation expense	[1]	7,160	11,713	15,662	25,595
- Change in deferred taxes		(4,939)	7,252	(7,617)	1,336
- Change in income taxes		3,056	(8,696)	727	(10,630)
- Other		22	410	45	(268)
Changes in working capital related to operating activities		(5,856)	11,466	1,631	32,287
- Decrease in trade receivables		27,318	19,325	126,706	105,343
- (Decrease) in trade payables		(22,118)	(14,995)	(103,797)	(73,480)
- Decrease in other current assets		15,448	7,504	5,050	1,512
- Increase/(Decrease) in other current liabilities		(25,503)	3,015	(26,448)	5,451
- Change in operating lease liabilities and right of use assets		(1,001)	(3,383)	120	(6,539)
Cash from operating activities		33,377	52,964	90,120	120,184
Cash used for investing activities
Acquisition of intangible assets, property, plant and equipment		(29,471)	(28,812)	(40,729)	(42,104)
Change in accounts payable related to intangible assets, property, plant and equipment		10,939	(3,980)	10,460	(14,372)
(Payment for) Disposal of a business, net of cash acquired (disposed)		0	637	0	(4,688)
Change in other non-current financial assets		(21,238)	(1,152)	(20,349)	(1,184)
Cash used for investing activities		(39,770)	(33,307)	(50,618)	(62,348)
Cash (used for) from financing activities
Proceeds from borrowings under line-of-credit agreement		154,310	0	154,310	0
Repayment of borrowings		1	(167)	(169)	(339)
Proceeds from capital increase		(20)	(98)	(16)	(87)
Repurchase of treasury stocks		(14,860)	0	(33,101)	0
Change in other financial liabilities		(573)	(209)	(927)	(239)
Cash (used for) from financing activities		138,858	(474)	120,097	(665)
Effect of exchange rates changes on cash and cash equivalents		9,210	7,099	(181)	456
Net increase in cash and cash equivalents		141,675	26,282	159,418	57,627
Net cash and cash equivalents at beginning of period		436,506	395,771	418,763	364,426
Net cash and cash equivalents at end of period		578,181	422,053	578,181	422,053
Supplemental disclosures of cash flow information
Cash paid for taxes, net of refunds		(4,519)	(7,127)	(16,566)	(24,995)
Cash paid for interest		$ (317)	$ (351)	$ (666)	$ (758)

[1] Of which $11.4 million and $6.8 million of equity awards compensation expense consisted of share-based compensation expense according to ASC 718 Compensation - stock compensation for the quarter ended June 30, 2019 and 2020, respectively, and $24.9 million and $14.9 million for the six months ended June 30, 2019 and 2020, respectively.