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Supplemental Financial Information - Quarterly Results | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Supplemental Financial Information - Quarterly Results | 28. Supplemental Financial Information—Quarterly Results (Unaudited)
|  | Three Months Ended |
|  | Dec. 31 |  |  | Sept. 30 |  |  | June 30 |  |  | Mar. 31 |  |  | Dec. 31 |  |  | Sept. 30 |  |  | June 30 |  |  | Mar. 31 |
|  | 2019 |  |  | 2019 |  |  | 2019 |  |  | 2019 |  |  | 2018 |  |  | 2018 |  |  | 2018 |  |  | 2018 |
Total revenues |  |  | $68,907 |  |  |  | $67,718 |  |  |  | $66,293 |  |  |  | $65,485 |  |  |  | $67,867 |  |  |  | $72,570 |  |  |  | $74,775 |  |  |  | $58,904 |
Operating income |  |  | $14,809 |  |  |  | $16,131 |  |  |  | $11,911 |  |  |  | $10,683 |  |  |  | $11,819 |  |  |  | $21,708 |  |  |  | $14,531 |  |  |  | $13,221 |
(Loss)/income before income taxes |  |  | ($22,355) |  |  |  | $8,635 |  |  |  | $6,066 |  |  |  | $7,775 |  |  |  | ($12,597) |  |  |  | $27,530 |  |  |  | $22,184 |  |  |  | $13,922 |
Net (loss)/income |  |  | ($25,880) |  |  |  | $4,152 |  |  |  | $2,479 |  |  |  | $8,824 |  |  |  | ($11,564) |  |  |  | $22,049 |  |  |  | $16,724 |  |  |  | $9,424 |
(Loss)/earnings per share—basic |  |  | ($0.17) |  |  |  | $0.02 |  |  |  | $0.01 |  |  |  | $0.05 |  |  |  | ($0.08) |  |  |  | $0.13 |  |  |  | $0.10 |  |  |  | $0.07 |
(Loss)/earnings per share—diluted |  |  | ($0.17) |  |  |  | $0.02 |  |  |  | $0.01 |  |  |  | $0.05 |  |  |  | ($0.08) |  |  |  | $0.13 |  |  |  | $0.10 |  |  |  | $0.07 |
Dividends per common share |  |  | $0.03 |  |  |  | $0.03 |  |  |  | $0.03 |  |  |  | $0.03 |  |  |  | $0.03 |  |  |  | $0.03 |  |  |  | $0.03 |  |  |  | $0.03 |
Unusual or Infrequent Items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss)/gain on revaluation of deferred consideration (Note 12) |  |  | ($5,354) |  |  |  | ($6,306) |  |  |  | ($4,037) |  |  |  | $4,404 |  |  |  | ($5,410) |  |  |  | $7,732 |  |  |  | $9,898 |  |  |  | — |
Impairments (Note 26) |  |  | ($30,138) |  |  |  | — |  |  |  | — |  |  |  | ($572) |  |  |  | ($17,386) |  |  |  | — |  |  |  | — |  |  |  | — |

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- References No definition available. + Details
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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