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Variable Interest Entity Arrangements - Carrying Values of Assets and Liabilities of Subsidiary in Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Current assets |  |  |  |
Cash and cash equivalents | $ 4,954,740 | $ 3,685,618 | $ 2,236,424 | $ 3,367,914
Restricted cash | 128,006 | 192,551 | 146,822 | 155,323
Accounts receivable, net | 1,147,100 | 949,022 |  |
Prepaid expenses and other current assets | 569,748 | 365,671 |  |
Total current assets | 10,181,952 | 8,306,308 |  |
Non-current assets |  |  |  |
Restricted cash, net of current portion | 365,547 | 398,219 | $ 399,992 | $ 441,722
Other assets | 842,978 | 571,657 |  |
Total assets | 31,872,597 | 29,739,614 |  |
Current liabilities |  |  |  |
Accounts payable | 3,133,587 | 3,404,451 |  |
Accrued liabilities and other | 2,622,943 | 2,094,253 |  |
Deferred revenue | 883,293 | 630,292 |  |
Current portion of long-term debt and finance leases | 1,791,085 | 2,567,699 |  |
Total current liabilities | 9,588,773 | 9,992,136 |  |
Deferred revenue, net of current portion | 1,182,042 | 990,873 |  |
Long-term debt and finance leases, net of current portion | 11,234,401 | 9,403,672 |  |
Other long-term liabilities | 2,655,720 | 2,710,403 |  |
Operating Lease Vehicles [Member] |  |  |  |
Non-current assets |  |  |  |
Operating lease net | 2,069,540 | 2,089,758 |  |
Variable Interest Entities (“VIEs”) [Member] |  |  |  |
Current assets |  |  |  |
Cash and cash equivalents | 90,872 | 75,203 |  |
Restricted cash | 62,446 | 130,927 |  |
Accounts receivable, net | 42,865 | 18,702 |  |
Prepaid expenses and other current assets | 8,850 | 10,262 |  |
Total current assets | 205,033 | 235,094 |  |
Non-current assets |  |  |  |
Restricted cash, net of current portion | 64,739 | 65,262 |  |
Other assets | 71,177 | 55,554 |  |
Total assets | 5,890,448 | 5,628,077 |  |
Current liabilities |  |  |  |
Accounts payable | 38 | 32 |  |
Accrued liabilities and other | 91,040 | 132,774 |  |
Deferred revenue | 34,535 | 21,345 |  |
Current portion of long-term debt and finance leases | 625,179 | 662,988 |  |
Total current liabilities | 750,792 | 817,139 |  |
Deferred revenue, net of current portion | 204,407 | 177,451 |  |
Long-term debt and finance leases, net of current portion | 1,259,682 | 1,237,707 |  |
Other long-term liabilities | 28,018 | 26,400 |  |
Total liabilities | 2,242,899 | 2,258,697 |  |
Variable Interest Entities (“VIEs”) [Member] | Operating Lease Vehicles [Member] |  |  |  |
Non-current assets |  |  |  |
Operating lease net | 470,571 | 155,439 |  |
Variable Interest Entities (“VIEs”) [Member] | Solar Energy Systems [Member] |  |  |  |
Non-current assets |  |  |  |
Operating lease net | $ 5,078,928 | $ 5,116,728 |  |

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