Unaudited Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Accounts receivable, non-trade	$ 10,688	$ 12,793
Accounts receivable, related party balance	2,444	$ 1,677
Accumulated depreciation on finance leases	$ 292,557
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, share authorized (in shares)	725,000,000	725,000,000
Common stock, share outstanding (in shares)	100,784,683	100,784,422
Common stock, share issued (in shares)	100,784,683	100,784,422

Finance Lease, Right-of-Use Asset, Accumulated Amortization

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Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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The sum of amounts currently receivable other than from customers. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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