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Earnings per Share - Schedule of Computation of Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Earnings Per Share [Abstract] |  |  |  |
Net Income (Loss) | $ 20,523 | $ 16,276 | $ 34,296 | $ 36,846
Noncontrolling interests | (1,731) | (651) | (2,782) | (770)
Net Income (Loss) Attributable to Stockholders | 18,792 | 15,625 | 31,514 | 36,076
Preferred stockholder dividends | (2,084) | 0 | (6,252) | 0
Net Income (Loss) Attributable to Common Stockholders | $ 16,708 | $ 15,625 | $ 25,262 | $ 36,076
Shares: |  |  |  |
Basic: Weighted-average number of shares outstanding (in shares) | 7,212 | 7,676 | 6,942 | 8,062
Plus: Incremental shares from assumed conversion of dilutive instruments (in shares) | 1,280 | 178 | 226 | 161
Diluted: Weighted-average number of shares outstanding (in shares) | 8,492 | 7,854 | 7,168 | 8,223
Earnings (Loss) per share—Basic (in $ per share) | $ 2.32 | $ 2.04 | $ 3.64 | $ 4.47
Earnings (Loss) per Share—Diluted (in $ per share) | $ 2.21 | $ 1.99 | $ 3.52 | $ 4.39

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=96948231&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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