Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 122,566	$ 170,262
Restricted cash	457	430
Accounts receivable, net	19,305	16,128
Inventories, net	17,518	20,042
Prepaid inventories, net	1,218	1,311
Deferred tax assets, net	16,048	26,305
Prepaids and other current assets	17,258	13,890
Total current assets	194,370	248,368
Fixed assets, net	126,344	93,696
Precious metals	9,722	9,722
Deferred tax assets, net	41,844	37,891
Intangible assets, net	12,681	14,656
Goodwill	14,698	15,387
Other long-term assets, net	15,163	8,669
Total assets	414,822	428,389
Current liabilities:
Accounts payable	78,934	122,705
Accrued liabilities	76,310	83,387
Deferred revenue	44,070	50,944
Other Long-term Debt, Current	2,229	1,059
Other current liabilities, net	1,360	581
Total current liabilities	202,903	258,676
Long-term Debt, Net	31,969	8,843
Other Long-term Debt, Noncurrent	8,642	4,535
Other long-term liabilities	9,515	6,974
Total liabilities	253,029	279,028
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock, $0.0001 par value: Authorized shares - 5,000; Issued and outstanding shares - none	0	0
Common stock, $0.0001 par value: Authorized shares - 100,000; Issued shares - 27,796 and 27,634; Outstanding shares - 25,348 and 25,234	3	3
Additional paid-in capital	372,762	370,047
Accumulated deficit	(153,895)	(166,420)
Accumulated other comprehensive loss	(2,990)	(1,430)
Treasury stock: Shares at cost - 2,448 and 2,400	(52,349)	(51,747)
Total equity	163,531	150,453
Equity attributable to noncontrolling interests	(1,738)	(1,092)
Total equity	161,793	149,361
Total liabilities and stockholders’ equity	$ 414,822	$ 428,389