Annual report pursuant to Section 13 and 15(d)

Schedule III Combined Real Estate and Accumulated Depreciation - Cost and Accumulated Depreciation (Detail)

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Schedule III Combined Real Estate and Accumulated Depreciation - Cost and Accumulated Depreciation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Cost:      
Balance at beginning of period $ 4,321,410 $ 4,243,308 $ 2,491,702
Acquisitions through foreclosure 0 0 0
Other acquisitions 76,582 22,638 1,714,029
Improvements, etc. 67,291 84,191 73,385
Additions during period other acquisitions, improvements, total 143,873 106,829 1,787,414
Cost of assets disposed (66,344) (28,727) (35,808)
Impairment write-down 0 0 0
Casualty loss 0 0 0
Deductions during period (66,344) (28,727) (35,808)
Balance at close of period 4,398,939 4,321,410 4,243,308
Accumulated Depreciation:      
Balance at beginning of period 624,314 535,704 465,195
Depreciation expense 102,361 102,674 87,219
Additions during period depreciation expense, total 102,361 102,674 87,219
Accumulated depreciation of assets disposed (21,994) (14,064) (16,710)
Accumulated depreciation on impaired asset 0 0 0
Accumulated depreciation on casualty loss 0 0 0
Deductions during period (21,994) (14,064) (16,710)
Balance at close of period $ 704,681 $ 624,314 $ 535,704