Employee Benefit Plans

12 Months Ended

Dec. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Pension and Other Employee Benefit Plans

Employee Benefit Plans

Prior to the IPO, some of our shared employees and retirees participated in CBI’s pension and other benefit plans. CBI managed these plans on a combined basis for all its affiliates and funded all plan contributions. Our employees were also eligible to participate in one of two sponsored defined contribution plans. One of these plans was sponsored by CyrusOne and the other by CBI. Employee contributions to these plans were matched by the sponsoring employer. Our direct and allocated contributions to these plans were $0.4 million for each of the years ended December 31, 2012 and 2011.

CyrusOne continues to offer a retirement savings plan to its employees. CyrusOne's matching contribution to its retirement savings plan was less than $0.5 million for the period ended December 31, 2013, and less than $0.1 million for the period ended January 23, 2013.

In addition, prior to the IPO, some of our shared employees participated in CBI's sponsored health care plans. We were unable to estimate our share of CBI’s liability for claims incurred but not reported or reported but not paid. Our allocated costs of these plans for the years ended December 31, 2012 and 2011, were $0.1 million and $0.8 million, respectively.

After the IPO, our employees participated in health care plans sponsored by CyrusOne, which provided medical, dental, vision and prescription benefits. We incurred $1.6 million and $0.1 million of expenses related to these plans for the periods ended December 31, 2013, and January 23, 2013, respectively. Effective with the completion of the IPO on January 24, 2013, we no longer receive an allocated charge from CBI or participate in CBI's sponsored health care plans.