XML 65 R11.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Investments in Limited Partnerships and Marketable Securities | 6 Months Ended
--- | ---
Jun. 27, 2015
Marketable Securities and Equity-Method Affiliates [Abstract] |
INVESTMENTS IN LIMITED PARTNERSHIPS AND MARKETABLE SECURITIES | INVESTMENTS IN LIMITED PARTNERSHIPS AND MARKETABLE SECURITIES Investments in Limited Partnerships The Company invests in several venture capital limited partnerships that invest in start-up companies primarily in the life sciences industry. The Company’s ownership interest in these limited partnerships ranges from 3.8% to 12.0%. The Company accounts for such investments under the equity method of accounting. The Company’s total commitment to these entities as of June 27, 2015 is $65.0 million, of which the Company has funded $23.5 million through June 27, 2015. During the three and six months ended June 27, 2015 the Company received dividends totaling $2.1 million. During the three and six months ended June 28, 2014, the Company received dividends totaling $0.9 million and $7.4 million, respectively. The Company recognized a loss of $0.9 million and a gain of $2.1 million related to these investments for the three months ended June 27, 2015 and June 28, 2014, respectively. Marketable Securities The following is a summary of the Company's marketable securities, all of which are classified as available-for-sale:
| June 27, 2015
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (in thousands)
Mutual fund | $ | 4,650 |  |  | $ | — |  |  | $ | (89 | ) |  | $ | 4,561 |
Total | $ | 4,650 |  |  | $ | — |  |  | $ | (89 | ) |  | $ | 4,561 |
There were no sales of available-for-sale securities during the six months ended June 27, 2015.

X
- Definition Investments in Limited Partnerships [Text Block] + References No definition available. + Details
Name: | crl_InvestmentsinLimitedPartnershipsTextBlock
Namespace Prefix: | crl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Marketable Securities and Equity-Method Affiliates [Abstract] + References No definition available. + Details
Name: | crl_MarketableSecuritiesAndEquityMethodAffiliatesAbstract
Namespace Prefix: | crl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration