CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash from operating activities
Net income		$ 5,293	$ 20,557	$ 27,871	$ 54,495
Non-cash and non-operating items		39,831	18,776	105,742	72,735
- Amortization and provisions		24,680	19,455	79,631	57,381
- Net gain or loss on disposal of non-current assets		591	0	2,734	0
- Equity awards compensation expense	[1]	6,803	11,165	22,465	36,760
- Change in deferred taxes		(80)	(2,710)	(7,697)	(1,374)
- Change in income taxes		6,684	(9,309)	7,411	(19,939)
- Other		1,153	175	1,198	(93)
Changes in working capital related to operating activities		6,032	3,956	7,663	36,243
- (Increase) / Decrease in trade receivables		(4,177)	14,821	122,529	120,164
- Increase / (Decrease) in trade payables		8,494	(4,415)	(95,303)	(77,895)
- (Increase) / Decrease in other current assets		(2,762)	638	2,288	2,150
- Increase/(Decrease) in other current liabilities		6,303	(10,177)	(20,145)	(4,726)
- Change in operating lease liabilities and right of use assets		(1,826)	3,089	(1,706)	(3,450)
Cash from operating activities		51,156	43,289	141,276	163,473
Cash used for investing activities
Acquisition of intangible assets, property, plant and equipment		(16,308)	(27,239)	(57,037)	(69,343)
Change in accounts payable related to intangible assets, property, plant and equipment		3,410	3,295	13,870	(11,077)
(Payment for) Disposal of a business, net of cash acquired (disposed)		(3)	106	(3)	(4,582)
Change in other non-current financial assets		(280)	(165)	(20,629)	(1,349)
Cash used for investing activities		(13,181)	(24,003)	(63,799)	(86,351)
Cash (used for) from financing activities
Proceeds from borrowings under line-of-credit agreement		3,193	0	157,503	0
Repayment of borrowings		(12)	(167)	(181)	(506)
Proceeds from capital increase		117	725	101	638
Repurchase of treasury stocks		(10,554)	(17,603)	(43,655)	(17,603)
Change in other financial liabilities		(1,083)	(928)	(2,010)	(1,167)
Cash (used for) from financing activities		(8,339)	(17,973)	111,758	(18,638)
Effect of exchange rates changes on cash and cash equivalents		18,927	(14,188)	18,746	(13,732)
Net increase (decrease) in cash and cash equivalents		48,563	(12,875)	207,981	44,752
Net cash and cash equivalents at beginning of period		578,181	422,053	418,763	364,426
Net cash and cash equivalents at end of period		626,744	409,178	626,744	409,178
Supplemental disclosures of cash flow information
Cash paid for taxes, net of refunds		4,337	(19,932)	(12,229)	(44,927)
Cash paid for interest		$ (153)	$ (337)	$ (819)	$ (1,095)

[1] Of which $10.8 million and $6.5 million of equity awards compensation expense consisted of share-based compensation expense according to ASC 718 Compensation - stock compensation for the quarter ended September 30, 2019 and 2020, respectively, and $35.7 million and $21.4 million for the nine months ended September 30, 2019 and 2020, respectively.