Commitments and Contingencies	3 Months Ended
Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Lease Commitments We lease office facilities, including our headquarters and other facilities, and equipment under non-cancelable operating leases. For detail of these commitments refer to Note 13 in Part II, Item 8 in our 2016 Form 10-K. Credit Facilities We maintain a $75.0 million revolving credit facility which includes capacity for a $40.0 million letter of credit facility and a $10.0 million swingline facility. Letters of credit issued pursuant to the revolving credit facility reduce the amount available for borrowing under the revolving credit facility. The total unused portion of the revolving credit facility was $59.5 million as of March 31, 2017. The terms of the credit agreement governing the revolving credit facility require us to maintain certain financial ratios at each quarter end. We were in compliance with these financial covenants at March 31, 2017. We also have a $5.0 million line of credit facility to secure standby letters of credit related to our workers' compensation obligations. At March 31, 2017, the total unused portion of the credit facility was $2.7 million. Standby Letters of Credit We have two unused standby letters of credit totaling $17.8 million provided as collateral for our workers’ compensation obligations. At March 31, 2017, the facilities were not drawn down. Contingencies In August 2015, Howard Welgus, a purported stockholder, filed a putative securities class action lawsuit, Welgus v. TriNet Group, Inc. et. al., under the Securities Exchange Act of 1934 in the United States District Court (the Court) for the Northern District of California. The complaint was later amended in April 2016. The amended complaint generally alleges that TriNet and the other defendants caused damage to purchasers of our stock by misrepresenting and/or failing to disclose facts generally pertaining to alleged trends affecting health insurance and workers' compensation claims. The other defendants include certain of our officers and directors, General Atlantic, LLC, a former significant shareholder, and the underwriters of our IPO. In November 2016, the parties appeared at a hearing before the Court on our motion to dismiss the amended complaint in its entirety. In January 2017, the Court issued an order granting TriNet’s and the other defendants’ motions to dismiss. The Court dismissed the plaintiff’s claims in part with prejudice and in part without. As a result, the Court gave the plaintiff until March 3, 2017 to file a second amended complaint with respect to claims not dismissed with prejudice. The plaintiff filed his second amended complaint on March 3, 2017. The defendants filed a motion to dismiss on April 17, 2017. The court set September 20, 2017 for a court hearing on the motion to dismiss. We are unable to reasonably estimate the possible loss or range of losses, if any, arising from this litigation. We are and, from time to time, have been and may in the future become involved in various litigation matters, legal proceedings and claims arising in the ordinary course of our business, including disputes with our clients or various class action, collective action, representative action and other proceedings arising from the nature of our co-employment relationship with our clients and WSEs in which we are named as a defendant. In addition, due to the nature of our co-employment relationship with our clients and WSEs, we could be subject to liability for federal and state law violations, even if we do not participate in such violations. While our agreements with our clients contain indemnification provisions related to the conduct of our clients, we may not be able to avail ourselves of such provisions in every instance. We have accrued our current best estimates of probable losses with respect to these matters which are individually and in aggregate immaterial to our condensed consolidated financial statements. While the outcome of the matters described above cannot be predicted with certainty, management currently does not believe that any such claims or proceedings or the above mentioned securities class action will have a materially adverse effect on our consolidated financial position, results of operations or cash flows. However, the unfavorable resolution of any particular matter or our reassessment of our exposure for any of the above matters based on additional information obtained in the future could have a material impact on our consolidated financial position, results of operations or cash flows.

COMMITMENTS AND CONTINGENCIES

Lease Commitments

We lease office facilities, including our headquarters and other facilities, and equipment under non-cancelable operating leases. For detail of these commitments refer to Note 13 in Part II, Item 8 in our 2016 Form 10-K.

Credit Facilities

We maintain a $75.0 million revolving credit facility which includes capacity for a $40.0 million letter of credit facility and a $10.0 million swingline facility. Letters of credit issued pursuant to the revolving credit facility reduce the amount available for borrowing under the revolving credit facility. The total unused portion of the revolving credit facility was $59.5 million as of March 31, 2017.

The terms of the credit agreement governing the revolving credit facility require us to maintain certain financial ratios at each quarter end. We were in compliance with these financial covenants at March 31, 2017.

We also have a $5.0 million line of credit facility to secure standby letters of credit related to our workers' compensation obligations. At March 31, 2017, the total unused portion of the credit facility was $2.7 million.

Standby Letters of Credit

We have two unused standby letters of credit totaling $17.8 million provided as collateral for our workers’ compensation obligations. At March 31, 2017, the facilities were not drawn down.

Contingencies

In August 2015, Howard Welgus, a purported stockholder, filed a putative securities class action lawsuit, Welgus v. TriNet Group, Inc. et. al., under the Securities Exchange Act of 1934 in the United States District Court (the Court) for the Northern District of California. The complaint was later amended in April 2016. The amended complaint generally alleges that TriNet and the other defendants caused damage to purchasers of our stock by misrepresenting and/or failing to disclose facts generally pertaining to alleged trends affecting health insurance and workers' compensation claims. The other defendants include certain of our officers and directors, General Atlantic, LLC, a former significant shareholder, and the underwriters of our IPO. In November 2016, the parties appeared at a hearing before the Court on our motion to dismiss the amended complaint in its entirety. In January 2017, the Court issued an order granting TriNet’s and the other defendants’ motions to dismiss. The Court dismissed the plaintiff’s claims in part with prejudice

and in part without. As a result, the Court gave the plaintiff until March 3, 2017 to file a second amended complaint with respect to claims not dismissed with prejudice. The plaintiff filed his second amended complaint on March 3, 2017. The defendants filed a motion to dismiss on April 17, 2017. The court set September 20, 2017 for a court hearing on the motion to dismiss. We are unable to reasonably estimate the possible loss or range of losses, if any, arising from this litigation.

We are and, from time to time, have been and may in the future become involved in various litigation matters, legal proceedings and claims arising in the ordinary course of our business, including disputes with our clients or various class action, collective action, representative action and other proceedings arising from the nature of our co-employment relationship with our clients and WSEs in which we are named as a defendant. In addition, due to the nature of our co-employment relationship with our clients and WSEs, we could be subject to liability for federal and state law violations, even if we do not participate in such violations. While our agreements with our clients contain indemnification provisions related to the conduct of our clients, we may not be able to avail ourselves of such provisions in every instance. We have accrued our current best estimates of probable losses with respect to these matters which are individually and in aggregate immaterial to our condensed consolidated financial statements.

While the outcome of the matters described above cannot be predicted with certainty, management currently does not believe that any such claims or proceedings or the above mentioned securities class action will have a materially adverse effect on our consolidated financial position, results of operations or cash flows. However, the unfavorable resolution of any particular matter or our reassessment of our exposure for any of the above matters based on additional information obtained in the future could have a material impact on our consolidated financial position, results of operations or cash flows.