Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 608,798	$ 602,359
Accounts receivables, net	214,462	246,191
Inventories	156,227	161,263
Other current assets	13,768	13,923
Total current assets	993,255	1,023,736
Property, plant and equipment, net	605,884	624,959
Goodwill and intangible assets, net	24,755	25,210
Other assets	53,940	52,933
Total assets	1,677,834	1,726,838
Current liabilities:
Current portion of long-term debt	4,636	7,321
Accounts payable	10,046	12,784
Deferred revenue	52,480	57,637
Accrued and other current liabilities	102,597	111,884
Total current liabilities	169,759	189,626
Deferred tax liabilities	37,004	40,257
Other non-current liabilities	42,795	44,824
Total liabilities	$ 249,558	$ 274,707
Commitments and contingencies
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: 155,913,891 shares issued and 155,357,783 outstanding at 2016 and 155,661,150 shares issued and 155,146,338 shares outstanding at 2015	2,048	2,045
Additional paid-in capital	717,079	712,486
Retained earnings	507,549	531,621
Accumulated other comprehensive loss	(23,425)	(25,555)
Treasury stock (at cost), 556,108 at 2016 and 514,812 shares at 2015	(9,882)	(9,298)
Total stockholders' equity	1,193,369	1,211,299
Noncontrolling interest	234,202	240,127
Total equity	1,427,571	1,451,426
Total liabilities and equity	$ 1,677,834	$ 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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.