Subsequent events	12 Months Ended
Dec. 31, 2015
Subsequent events
Subsequent events	19. Subsequent events Credit Facility In February 2016, we borrowed an additional $5,000 under the Revolving Line of Credit. On February 23, 2016, we entered into a Lender Joinder Agreement (the "Joinder Agreement") to Credit Agreement, by and among Bank of America, N.A. acting as agent ("Agent") for the lenders named in the Credit Agreement (the "Lenders") and Citizens Bank, N.A. (the "New Lender"). The Joinder Agreement joins the New Lender as a Lender under the Credit Agreement, increases the Revolving Line of Credit by $23,250 from $46,500 to $69,750, stipulates that the New Lender will provide the additional $23,250 of the Revolving Line of Credit and effects certain other changes described therein. Additionally, pursuant to the Joinder Agreement and the Credit Agreement, the Company entered into a revolving note with the New Lender obligating the Company to pay interest and principal to the New Lender on the New Lender's portion of the Revolving Line of Credit. There was no change to the interest rates under the Credit Agreement and the maturity date of the Revolving Line of Credit continues to be November 21, 2018, subject to prepayment. Equity Incentive Plan In February 2016, we granted approximately 975,000 time-based RSUs to certain executives that "cliff vest" upon continuous service through February 1, 2019 and approximately 975,000 performance-based RSUs (assuming at-target achievement) that vest upon the achievement of performance objectives through December 31, 2017 and continuous service through February 1, 2019. Additionally, we granted approximately 192,000 time-based RSUs to the Company's other executive officers that vest quarterly over three years of continuous service and 192,000 performance-based RSUs (assuming at-target achievement) that vest upon the achievement of performance objectives through December 31, 2017. 662/3% of the performance-based RSUs will vest on a determination date not to exceed March 15, 2018, another 81/3% will vest on May 1, 2018, and an additional 81/3% will vest quarterly thereafter upon completion of continuous service. We also granted approximately 539,000 time-based RSUs to non-executive personnel that will vest quarterly over three years of continuous service. The grants were made pursuant to our 2011 Plan.

19. Subsequent events

Credit Facility

In February 2016, we borrowed an additional $5,000 under the Revolving Line of Credit.

On February 23, 2016, we entered into a Lender Joinder Agreement (the "Joinder Agreement") to Credit Agreement, by and among Bank of America, N.A. acting as agent ("Agent") for the lenders named in the Credit Agreement (the "Lenders") and Citizens Bank, N.A. (the "New Lender"). The Joinder Agreement joins the New Lender as a Lender under the Credit Agreement, increases the Revolving Line of Credit by $23,250 from $46,500 to $69,750, stipulates that the New Lender will provide the additional $23,250 of the Revolving Line of Credit and effects certain other changes described therein. Additionally, pursuant to the Joinder Agreement and the Credit Agreement, the Company entered into a revolving note with the New Lender obligating the Company to pay interest and principal to the New Lender on the New Lender's portion of the Revolving Line of Credit.

There was no change to the interest rates under the Credit Agreement and the maturity date of the Revolving Line of Credit continues to be November 21, 2018, subject to prepayment.

Equity Incentive Plan

In February 2016, we granted approximately 975,000 time-based RSUs to certain executives that "cliff vest" upon continuous service through February 1, 2019 and approximately 975,000 performance-based RSUs (assuming at-target achievement) that vest upon the achievement of performance objectives through December 31, 2017 and continuous service through February 1, 2019.

Additionally, we granted approximately 192,000 time-based RSUs to the Company's other executive officers that vest quarterly over three years of continuous service and 192,000 performance-based RSUs (assuming at-target achievement) that vest upon the achievement of performance objectives through December 31, 2017. 662/3% of the performance-based RSUs will vest on a determination date not to exceed March 15, 2018, another 81/3% will vest on May 1, 2018, and an additional 81/3% will vest quarterly thereafter upon completion of continuous service.

We also granted approximately 539,000 time-based RSUs to non-executive personnel that will vest quarterly over three years of continuous service.

The grants were made pursuant to our 2011 Plan.