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Note Loans (Changes in the carrying amount and the accretable yield for the acquired loans) (Detail) - ASC Subtopic 310-30 - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accretable yield    
Beginning Balance $ 1,214,488 $ 1,288,983
Additions 6,535 11,218
Accretion (166,272) (175,121)
Change In Expected Cash Flows 37,753 89,408
Ending Balance 1,092,504 [1] 1,214,488
Carrying amount of loans    
Beginning Balance 2,108,993 2,301,024
Additions 16,645 18,824
Accretion 166,272 175,121
Collections / loan sales / charge-offs (408,354) (385,976)
Ending Balance 1,883,556 [2] 2,108,993
Less: Allowance for loan losses (122,135) (119,505)
Carrying amount, net of allowance $ 1,761,421 $ 1,989,488
[1]
At December 31, 2018, includes $0.8 billion for loans considered non-credit impaired at the acquisition date (December 31, 2017 - $0.9 billion).
[2]
At December 31, 2018, includes $1.4 billion of loans considered non-credit impaired at the acquisition date (December 31, 2017 - $1.6 billion).