CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 581,371	$ 602,359
Accounts receivables, net	168,909	246,191
Inventories	145,186	161,263
Other current assets	10,800	13,923
Total current assets	906,266	1,023,736
Property, plant and equipment, net	588,256	624,959
Goodwill and intangible assets, net	24,300	25,210
Other assets	54,858	52,933
Total assets	1,573,680	1,726,838
Current liabilities:
Short-term debt	2,415	7,321
Accounts payable	10,840	12,784
Deferred revenue	36,409	57,637
Accrued and other current liabilities	90,042	111,884
Total current liabilities	139,706	189,626
Deferred tax liabilities	31,333	40,257
Other non-current liabilities	42,564	44,824
Total liabilities	213,603	274,707
Commitments and contingencies (Note 18)
Series A preferred stock, €0.01, par value, 52,976,000 shares authorized, issued and outstanding	705	705
Stockholders' equity:
Common stock, €0.01, par value, 745,120,000 shares authorized: 156,121,766 shares issued and 155,515,226 shares outstanding at 2016 and 155,661,150 shares issued and 155,146,338 shares outstanding at 2015	2,050	2,045
Additional paid-in capital	721,982	712,486
Retained earnings	452,608	531,621
Accumulated other comprehensive loss	(23,758)	(25,555)
Treasury stock (at cost), 606,540 at 2016 and 514,812 shares at 2015	(10,694)	(9,298)
Total stockholders' equity	1,142,188	1,211,299
Noncontrolling interest	217,184	240,127
Total equity	1,359,372	1,451,426
Total liabilities and equity	$ 1,573,680	$ 1,726,838

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).