CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 489,894	$ 289,224
Short-term investments	178,021	26,352
Accounts receivable, net	82,317	57,365
Inventories	11,019	11,751
Prepaid expenses and other current assets	41,383	48,084
Total current assets	802,634	432,776
Long-term investments	9,242	14,479
Property and equipment, net	266,860	284,110
Intangible assets, net	29,671	43,420
Goodwill	408,975	408,975
Other assets	17,418	11,816
Total assets	1,534,800	1,195,576
Current liabilities:
Current portion of long-term debt	297,054	0
Accounts payable	91,473	58,790
Accrued liabilities	159,248	138,869
Deferred revenue, current portion	24,649	22,929
Total current liabilities	572,424	220,588
Long-term debt	292,457	278,792
Other liabilities	119,195	137,035
Total liabilities	984,076	636,415
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.0001 par value; 100,000 shares authorized; 32,297 and 33,637 shares issued and outstanding on December 31, 2017 and December 31, 2016, respectively	3	3
Additional paid-in capital	996,301	949,864
Accumulated other comprehensive income (loss)	1,778	(32)
Accumulated deficit	(447,358)	(390,674)
Total stockholders' equity	550,724	559,161
Total liabilities and stockholders' equity	$ 1,534,800	$ 1,195,576

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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Namespace Prefix:	us-gaap_
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.