XML 49 R32.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Net Income per Share (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Net Income per Share |
Schedule of reconciliation from net income to the net income available to common shareholders | The following table presents a reconciliation from net income attributable to CRA International, Inc. to net income available to common shareholders (in thousands):
|  | Quarter Ended |  | Fiscal Year-to-Date Period Ended |
|  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017 |
Net income, as reported |  | $ | 6,839 |  | $ | 3,813 |  | $ | 11,725 |  | $ | 6,666 |
Less: net income attributable to participating shares |  |  | 39 |  |  | 24 |  |  | 69 |  |  | 44 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income available to common shareholders |  | $ | 6,800 |  | $ | 3,789 |  | $ | 11,656 |  | $ | 6,622 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of reconciliation of basic to diluted weighted average shares of common stock outstanding | The following table presents a reconciliation of basic to diluted weighted average shares of common stock outstanding (in thousands):
|  | Quarter Ended |  | Fiscal Year-to-Date Period Ended |
|  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017 |
Basic weighted average shares outstanding |  |  | 8,053 |  |  | 8,428 |  |  | 8,169 |  |  | 8,423 |
Stock options and restricted stock units |  |  | 497 |  |  | 190 |  |  | 480 |  |  | 196 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted weighted average shares outstanding |  |  | 8,550 |  |  | 8,618 |  |  | 8,649 |  |  | 8,619 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

X
- Definition Tabular disclosure of net income available to common shareholders after participating shares. + References No definition available. + Details
Name: | crai_ScheduleOfNetIncomeAvailableToCommonShareholdersTableTextBlock
Namespace Prefix: | crai_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration