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Leases - Schedule of Lease Assets and Related Lease Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Leases [Abstract] |  |
Right-of-use assets - cost | $ 49,909 |
Accumulated amortization | (10,307) |
Finance lease right-of-use assets, net | 39,602 | $ 0
Right-of-use assets - cost | 2,736 |
Accumulated amortization | (805) |
Operating lease right-of-use assets, net | 1,931 | 0
Total lease assets | 41,533 |
Finance lease liabilities | 12,351 | 0
Operating lease liabilities | 983 |
Finance lease liabilities | 37,610 | 0
Operating lease liabilities | 942 | $ 0
Total lease liabilities | $ 51,886 |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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