Annual report pursuant to Section 13 and 15(d)

SCHEDULE I CONDENSED FINANCIAL INFORMATION OF REGISTRANT - Parent Company Statements Of Cash Flows (Details)

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SCHEDULE I CONDENSED FINANCIAL INFORMATION OF REGISTRANT - Parent Company Statements Of Cash Flows (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided (used) by operating activities $ (69,965) $ (113,008) $ (103,752)
Cash flows from investing activities:      
Net cash used in investing activities (1,307) (65,943) (21,687)
Cash flows from financing activities:      
Proceeds from common stock issuances 103,664 0 133,800
Equity offering costs (3,989) 0 (4,090)
Proceeds from borrowings 50,000 75,000 59,400
Borrowings issuance costs (2,612) (2,246) (2,621)
Borrowings principal repayments (60,100) 0 0
Proceeds from warrants exercise 1,000 0 0
Tax payments for net share settlement of equity awards (1,659) (6,686) (5,734)
Net cash provided by financing activities 84,527 63,844 180,755
Net increase (decrease) in cash, cash equivalents and restricted cash 13,255 (115,107) 55,316
Cash, cash equivalents and restricted cash, beginning of period 68,482 183,589 128,273
Cash, cash equivalents and restricted cash, end of period 81,737 68,482 183,589
Parent company      
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided (used) by operating activities (99,685) 6,686 (123,976)
Cash flows from investing activities:      
Cash Acquired from Acquisition 0 0 0
Cash flows from financing activities:      
Proceeds from common stock issuances 103,664 0 133,800
Equity offering costs (3,989) 0 (4,090)
Proceeds from borrowings 50,000 0 0
Borrowings issuance costs (2,612) 0 0
Borrowings principal repayments (40,000) 0 0
Proceeds from warrants exercise 1,000 0 0
Tax payments for net share settlement of equity awards (1,659) (6,686) (5,734)
Net cash provided by financing activities 106,404 (6,686) 123,976
Net increase (decrease) in cash, cash equivalents and restricted cash 6,719 0 0
Cash, cash equivalents and restricted cash, beginning of period 0 0 0
Cash, cash equivalents and restricted cash, end of period $ 6,719 $ 0 $ 0