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Net Income Per Share - Schedule of Reconciliation of Denominators and Additional Shares that are Excluded from the Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Weighted-average shares: |  |
Basic weighted-average common shares outstanding | 35,486 | 40,669
Total weighted-average shares | 35,632 | 40,728
Earnings per common share—Basic |  |
Net income | $ 14,551 | $ 8,447
Net income available to common shareholders—Basic | $ 14,491 | $ 8,435
Net income per common share—Basic | $ 0.41 | $ 0.21
Basic weighted-average common shares outstanding | 35,486 | 40,669
Effect of diluted shares | 963 | 839
Diluted weighted-average shares outstanding | 36,449 | 41,508
Net income per common share—Diluted | $ 0.40 | $ 0.20
RSAs |  |
Weighted-average shares: |  |
Basic weighted-average common shares outstanding | 146 | 59
Earnings per common share—Basic |  |
Less: Undistributed earnings allocated to RSAs | $ 60 | $ 12
Basic weighted-average common shares outstanding | 146 | 59
Common Stock |  |
Weighted-average shares: |  |
Basic weighted-average common shares outstanding | 35,486 | 40,669
Earnings per common share—Basic |  |
Basic weighted-average common shares outstanding | 35,486 | 40,669

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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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