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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2018
Accounting Policies [Abstract] |
Summary of Impact of Adoption of Accounting Standards | In connection with the implementation of ASC 606 on the modified retrospective method, we are presenting additional information to assist with the comparability of select line items of the current and prior period year to date reporting in our Condensed Consolidated Balance Sheets and Condensed Consolidated Statement of Operations. Below we have presented the amount by which each financial statement line item is affected in the current reporting period by the application of ASC 606 as compared with the guidance that was in effect before the change (ASC 605).
| Three Months Ended March 31, 2018 |
| As Reported |  |  | Adjustments |  |  | As Revised under ASC 605 |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Revenue, net | $ | 163,077 |  |  | $ | (163,077 | ) |  | $ | - |
Service revenue, net |  | - |  |  |  | 108,428 |  |  |  | 108,428 |
Reimbursed out-of-pocket revenue |  | - |  |  |  | 15,017 |  |  |  | 15,017 |
Total revenue |  | 163,077 |  |  |  | (39,632 | ) |  |  | 123,445 |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Direct service costs, excluding depreciation and amortization |  | 60,341 |  |  |  | - |  |  |  | 60,341 |
Reimbursed out-of-pocket expenses |  | 56,913 |  |  |  | (41,896 | ) |  |  | 15,017 |
Total direct costs |  | 117,254 |  |  |  | (41,896 | ) |  |  | 75,358 |
Total operating expenses |  | 142,958 |  |  |  | (41,896 | ) |  |  | 101,062 |
Income from operations |  | 20,119 |  |  |  | 2,264 |  |  |  | 22,383 |
Income before income taxes |  | 17,657 |  |  |  | 2,264 |  |  |  | 19,921 |
Income tax provision |  | 3,106 |  |  |  | 511 |  |  |  | 3,617 |
Net income | $ | 14,551 |  |  | $ | 1,753 |  |  | $ | 16,304 |
Net income per share attributable to common shareholders: |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 0.41 |  |  | $ | 0.05 |  |  | $ | 0.46 |
Diluted | $ | 0.40 |  |  | $ | 0.05 |  |  | $ | 0.45 |
Weighted average common shares outstanding: |  |  |  |  |  |  |  |  |  |  |
Basic |  | 35,486 |  |  |  | - |  |  |  | 35,486 |
Diluted |  | 36,449 |  |  |  | - |  |  |  | 36,449 |
ASSETS | As of March 31, 2018 |
Current assets: | As Reported |  |  | Adjustments |  |  | As Revised under ASC 605 |
Accounts receivable and unbilled, net |  | 110,654 |  |  |  | (12,733 | ) |  |  | 97,921 |
Total current assets |  | 153,754 |  |  |  | (12,733 | ) |  |  | 141,021 |
Deferred income taxes |  | 9,970 |  |  |  | (3,347 | ) |  |  | 6,623 |
Total assets | $ | 973,024 |  |  | $ | (16,080 | ) |  | $ | 956,944 |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |  |  |
Accrued expenses |  | 63,576 |  |  |  | (45,145 | ) |  |  | 18,431 |
Pre-funded study costs |  | - |  |  |  | 57,487 |  |  |  | 57,487 |
Advanced billings |  | 126,387 |  |  |  | (40,356 | ) |  |  | 86,031 |
Other current liabilities |  | 8,105 |  |  |  | 511 |  |  |  | 8,616 |
Total current liabilities |  | 232,492 |  |  |  | (27,503 | ) |  |  | 204,989 |
Total liabilities |  | 461,951 |  |  |  | (27,503 | ) |  |  | 434,448 |
Shareholders’ equity: |  |  |  |  |  |  |  |  |  |  |
Accumulated deficit |  | (115,521 | ) |  |  | 11,423 |  |  |  | (104,098 | )
Total shareholders’ equity |  | 511,073 |  |  |  | 11,423 |  |  |  | 522,496 |
Total liabilities and shareholders’ equity | $ | 973,024 |  |  | $ | (16,080 | ) |  | $ | 956,944 |
CASH FLOWS FROM OPERATING ACTIVITIES: | Three Months Ended March 31, 2018 |
| As Reported |  |  | Adjustments |  |  | As Revised under ASC 605 |
Net income |  | 14,551 |  |  |  | 1,753 |  |  |  | 16,304 |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |
Accounts receivable and unbilled, net |  | (17,760 | ) |  |  | 2,980 |  |  |  | (14,780 | )
Accrued expenses |  | 5,268 |  |  |  | (10,664 | ) |  |  | (5,396 | )
Pre-funded study costs |  | - |  |  |  | 50 |  |  |  | 50 |
Advanced billings |  | 6,817 |  |  |  | 5,370 |  |  |  | 12,187 |
Other assets and liabilities, net |  | 3,089 |  |  |  | 511 |  |  |  | 3,600 |
Net cash (used in) provided by operating activities |  | 23,298 |  |  |  | - |  |  |  | 23,298 |

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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