Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 145,864	$ 117,229
Trade and other receivables, net	54,201	51,527
Accounts receivable from related parties	3,090	1,495
Inventories	15,306	11,309
Prepayments and other assets	36,227	34,066
Property, plant and equipment, net	1,784,667	1,466,326
Investments	936	990
Goodwill	79,028	51,731
Other intangible assets	4,785	2,087
Deferred tax assets	1,063	1,063
Total assets	2,125,167	1,737,823
LIABILITIES AND SHAREHOLDERS' EQUITY
Trade and other payables	136,814	139,528
Payables to related parties	3,750	2,966
Income tax payable	1,867	1,090
Debt	993,741	898,215
Derivative financial instruments	3,720	0
Other liabilities	22,027	19,394
Deferred tax liabilities	105,834	77,081
Total liabilities	1,267,753	1,138,274
Commitments and contingencies
Shareholders' equity
Ordinary shares (par value €0.10; 500,000,000 shares authorized, 130,486,360 and 110,305,064 shares issued and 130,478,993 and 110,297,697 shares outstanding as of June 30, 2018 and December 31, 2017, respectively)	14,160	11,803
Treasury shares (at cost, 7,367 shares as of June 30, 2018 and December 31, 2017)	(80)	(80)
Paid-in capital	990,127	773,194
Accumulated other comprehensive loss	(3,889)	(3,826)
Accumulated deficit	(142,904)	(181,542)
Total shareholders' equity	857,414	599,549
Total liabilities and shareholders' equity	$ 2,125,167	$ 1,737,823