Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows From Operating Activities:
Net loss attributable to the Company	$ (127,080)	$ (57,487)	$ (55,690)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property, plant and equipment, and leased property	9,190	4,650	2,006
Amortization of intangible assets	593	590	981
Stock-based compensation	9,209	9,290	7,817
Loss on acquisition activity, net			116
Amortization and accelerated recognition of debt issuance costs	770	1,760
Provision for common stock warrants	36,360
Loss on disposal of leased property		41
Provision for loss contracts related to service		(1,071)	10,050
Change in fair value of common stock warrant liability	15,188	(4,344)	(3,661)
Changes in operating assets and liabilities that provide (use) cash:
Accounts receivable	(3,408)	10,727	(5,638)
Inventory	(18,836)	2,812	(7,251)
Prepaid expenses and other assets	(4,136)	(3,833)	(11,592)
Accounts payable, accrued expenses, and other liabilities	11,430	10,772	7,214
Accrual for loss contracts related to service	(752)	(8,227)
Deferred revenue	11,290	4,684	8,374
Net cash used in operating activities	(60,182)	(29,636)	(47,274)
Cash Flows From Investing Activities:
Purchase of property, plant and equipment	(4,090)	(2,743)	(3,520)
Purchase for construction of leased property	(40,273)	(55,332)
Net cash acquired in purchase acquisitions			1,496
Net cash used in investing activities	(44,363)	(58,075)	(2,024)
Cash Flows From Financing Activities:
Change in restricted cash	11,395	(6,787)	(47,335)
Proceeds from exercise of warrants, net of transaction costs	17,636	111	25
Proceeds from issuance of preferred stock and warrants		15,594
Purchase of treasury stock		(182)	(247)
Proceeds from issuance of common stock and warrants, net of transaction costs		11,940
Proceeds from exercise of stock options	97	102	167
Payments for redemption of preferred stock	(3,700)
Proceeds from public offerings, net of transaction costs	22,992
Proceeds from short-term borrowing, net of transaction costs		23,673
Principal payments on short-term borrowings		(25,000)
Proceeds from borrowing of long-term debt, net of transaction costs	20,147	47,400
Principal payments on long-term debt	(12,292)	(25,000)
Increase in finance obligations	26,736	28,034	14,467
Net cash provided by (used in) financing activities	83,011	69,885	(32,923)
Effect of exchange rate changes on cash	348	(121)	(23)
Decrease in cash and cash equivalents	(21,186)	(17,947)	(82,244)
Cash and cash equivalents, beginning of period	46,014	63,961	146,205
Cash and cash equivalents, end of period	24,828	46,014	63,961
Other Supplemental Cash Flow Information:
Cash paid for interest	8,791	$ 8,263	553
Summary of noncash investing and financing activities:
Issuance of common stock for acquisitions			$ 14,459
Conversion of preferred stock to common stock	$ 8,222