Related Parties	12 Months Ended
Dec. 31, 2015
Related Party Transactions [Abstract]
Related Parties	17. Related Parties The following is a summary of certain agreements and transactions between or among CBIZ and certain related parties. Management reviews these transactions as they occur and monitors them for compliance with the Company’s Code of Conduct, internal procedures and applicable legal requirements. The Audit Committee reviews and ratifies such transactions annually, or as they are more frequently brought to the attention of the Audit Committee by the Company’s Director of Internal Audit, General Counsel or other members of Management. A number of the businesses acquired by CBIZ are located in properties owned indirectly by and leased from persons employed by CBIZ, none of whom are members of CBIZ’s senior management. In the aggregate, CBIZ paid approximately $2.7 million, $2.2 million and $2.1 million during the years ended December 31, 2015, 2014 and 2013, respectively, under such leases. Rick L. Burdick, a director of CBIZ, is a partner of Akin Gump Strauss Hauer & Feld LLP (“Akin Gump”). Akin Gump performed legal work for CBIZ during the years ended December 31, 2015, 2014 and 2013 for which the firm received approximately $0.2 million, $0.6 million and $0.4 million from CBIZ, respectively. Pursuant to an agreement (the “Westbury Agreement”), CBIZ purchased an option for $5.0 million to purchase up to approximately 7.7 million shares of CBIZ’s common stock at a price of $7.25 per share, which constituted the remaining shares of CBIZ’s common stock held by Westbury. On August 30, 2013, concurrently with the sale of MMP, CBIZ repurchased 3.9 million shares from Westbury, which was 50.0% of Westbury’s then current holdings of the Company’s common stock, at a price of $6.65 per share, which represented the 60-day moving average share price at July 1, 2013. The total cost of this repurchase was $25.7 million. The option to repurchase the remaining shares from Westbury expired on September 30, 2013. CBIZ maintains joint-referral relationships and administrative service agreements with independent licensed CPA firms under which CBIZ provides administrative services in exchange for a fee. These firms are owned by licensed CPAs who are employed by CBIZ subsidiaries and provide audit and attest services to clients including CBIZ’s clients. The CPA firms with which CBIZ maintains administrative service agreements operate as limited liability companies, limited liability partnerships or professional corporations. The firms are separate legal entities with separate governing bodies and officers. CBIZ has no ownership interest in any of these CPA firms, and neither the existence of the administrative service agreements nor the providing of services thereunder is intended to constitute control of the CPA firms by CBIZ. CBIZ and the CPA firms maintain their own respective liability and risk of loss in connection with performance of each of its respective services, and CBIZ does not believe that its arrangements with these CPA firms result in additional risk of loss. CBIZ acted as guarantor for letters of credit for a CPA firm with which it has an affiliation. The letters of credit totaled $0.9 million and $1.9 million as of December 31, 2015 and 2014. CBIZ has recognized a liability for the fair value of the obligations undertaken in issuing these guarantees, which is recorded as other current liabilities in the accompanying consolidated financial statements. Management does not expect any material changes to result from these instruments as performance is not expected to be required.

17. Related Parties

The following is a summary of certain agreements and transactions between or among CBIZ and certain related parties. Management reviews these transactions as they occur and monitors them for compliance with the Company’s Code of Conduct, internal procedures and applicable legal requirements. The Audit Committee reviews and ratifies such transactions annually, or as they are more frequently brought to the attention of the Audit Committee by the Company’s Director of Internal Audit, General Counsel or other members of Management.

A number of the businesses acquired by CBIZ are located in properties owned indirectly by and leased from persons employed by CBIZ, none of whom are members of CBIZ’s senior management. In the aggregate, CBIZ paid approximately $2.7 million, $2.2 million and $2.1 million during the years ended December 31, 2015, 2014 and 2013, respectively, under such leases.

Rick L. Burdick, a director of CBIZ, is a partner of Akin Gump Strauss Hauer & Feld LLP (“Akin Gump”). Akin Gump performed legal work for CBIZ during the years ended December 31, 2015, 2014 and 2013 for which the firm received approximately $0.2 million, $0.6 million and $0.4 million from CBIZ, respectively.

Pursuant to an agreement (the “Westbury Agreement”), CBIZ purchased an option for $5.0 million to purchase up to approximately 7.7 million shares of CBIZ’s common stock at a price of $7.25 per share, which constituted the remaining shares of CBIZ’s common stock held by Westbury. On August 30, 2013, concurrently with the sale of MMP, CBIZ repurchased 3.9 million shares from Westbury, which was 50.0% of Westbury’s then current holdings of the Company’s common stock, at a price of $6.65 per share, which represented the 60-day moving average share price at July 1, 2013. The total cost of this repurchase was $25.7 million. The option to repurchase the remaining shares from Westbury expired on September 30, 2013.

CBIZ maintains joint-referral relationships and administrative service agreements with independent licensed CPA firms under which CBIZ provides administrative services in exchange for a fee. These firms are owned by licensed CPAs who are employed by CBIZ subsidiaries and provide audit and attest services to clients including CBIZ’s clients. The CPA firms with which CBIZ maintains administrative service agreements operate as limited liability companies, limited liability partnerships or professional corporations. The firms are separate legal entities with separate governing bodies and officers. CBIZ has no ownership interest in any of these CPA firms, and neither the existence of the administrative service agreements nor the providing of services thereunder is intended to constitute control of the CPA firms by CBIZ. CBIZ and the CPA firms maintain their own respective liability and risk of loss in connection with performance of each of its respective services, and CBIZ does not believe that its arrangements with these CPA firms result in additional risk of loss.

CBIZ acted as guarantor for letters of credit for a CPA firm with which it has an affiliation. The letters of credit totaled $0.9 million and $1.9 million as of December 31, 2015 and 2014. CBIZ has recognized a liability for the fair value of the obligations undertaken in issuing these guarantees, which is recorded as other current liabilities in the accompanying consolidated financial statements. Management does not expect any material changes to result from these instruments as performance is not expected to be required.