Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash Flows From Operating Activities:
Net loss attributable to the Company	$ (38,276)	$ (30,490)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property, plant and equipment, and leased property	2,912	1,481
Amortization of intangible assets	443	835
Stock-based compensation	6,745	5,835
Loss on acquisition activity, net		116
Amortization of debt issuance costs	469
Loss on disposal of leased property	41
Change in estimate	(1,071)
Change in fair value of common stock warrant liability	(4,709)	(4,603)
Changes in operating assets and liabilities that provide (use) cash, net of effects of acquisitions:
Accounts receivable	10,644	(1,536)
Inventory	(3,042)	(6,301)
Prepaid expenses and other assets	(3,549)	(8,079)
Accounts payable, accrued expenses, product warranty reserve and other liabilities	7,504	5,325
Accrual for loss contracts related to service	(5,745)
Deferred revenue	(2,035)	121
Net cash used in operating activities	(29,669)	(37,296)
Cash Flows From Investing Activities:
Purchase of property, plant and equipment	(2,464)	(2,902)
Purchase for construction of leased property	(42,674)
Net cash acquired in purchase acquisitions		1,811
Net cash used in investing activities	(45,138)	(1,091)
Cash Flows From Financing Activities:
Change in restricted cash	1,908	(29,686)
Proceeds from exercise of warrants	111	25
Proceeds from exercise of stock options	19	166
Proceeds from borrowing of long-term debt, net of transaction costs	23,407
Proceeds from short-term borrowing, net of transaction costs	23,673
Principal payments on short-term borrowings	(25,000)
Increase in finance obligations	29,242	6,637
Net cash provided by (used in) financing activities	53,360	(22,858)
Effect of exchange rate changes on cash	(28)	49
Decrease in cash and cash equivalents	(21,475)	(61,196)
Cash and cash equivalents, beginning of period	63,961	146,205
Cash and cash equivalents, end of period	42,486	85,009
Other Supplemental Cash Flow Information:
Cash paid for interest	$ 1,563	$ 303