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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2015
Shareholders' Equity |
Schedule of outstanding awards issued pursuant to plans | The following table summarizes the outstanding awards issued pursuant to the 2006 Plan described above as of December 31, 2015 and the remaining shares of common stock available for future issuance (in millions):
|  |  |  |  |  |  |  | Remaining
|  |  |  |  |  |  |  | shares of
|  |  |  |  |  |  |  | common stock
|  | Restricted |  |  |  | SSAR |  | available for
Plan name |  | Stock |  | RSUs |  | Awards |  | future issuance
2006 Plan (1) |  | 1.4 |  | 0.7 |  | 0.2 |  | 3.2
As of December 31, 2015, unvested restricted stock will vest between February 2016 and August 2020, unvested RSUs will vest between February 2016 and May 2020 and the outstanding SSAR Awards will expire between March 2018 and March 2020. RSUs granted to non‑employee directors under the 2006 Plan prior to 2011 remain outstanding until the date the non‑employee director ceases, for any reason, to be a member of the Board of Directors.
Schedule of unvested restricted stock outstanding | The following table summarizes the status of our unvested restricted stock outstanding and related transactions for each of the following years (in millions, except weighted average grant‑date fair value price and weighted average remaining vesting term data):
Unvested Restricted Stock Outstanding
|  |  |  |  |  |  |  |  |  | Weighted
|  |  |  | Weighted |  |  |  |  | Average
|  |  |  | Average |  |  |  |  | Remaining
|  | Unvested |  | Grant-date |  |  | Aggregate |  | Vesting
|  | Restricted |  | Fair Value |  |  | Intrinsic |  | Term
|  | Stock |  | Price |  |  | Value |  | (in Years)
As of December 31, 2012 |  | 1.1 |  | $ | 39.38 |  | $ | 45.3 |  | 3.4
Granted |  | 0.3 |  |  | 41.83 |  |  |  |  |
Vested |  | — |  |  | 37.00 |  |  |  |  |
Forfeited |  | — |  |  | 38.89 |  |  |  |  |
As of December 31, 2013 |  | 1.4 |  |  | 40.07 |  |  | 59.3 |  | 2.7
Granted |  | 0.3 |  |  | 44.18 |  |  |  |  |
Vested |  | (0.2) |  |  | 38.00 |  |  |  |  |
Forfeited |  | — |  |  | 39.58 |  |  |  |  |
As of December 31, 2014 |  | 1.5 |  |  | 41.18 |  |  | 70.2 |  | 2.1
Granted |  | 0.2 |  |  | 49.95 |  |  |  |  |
Vested |  | (0.2) |  |  | 39.63 |  |  |  |  |
Forfeited |  | (0.1) |  |  | 41.84 |  |  |  |  |
As of December 31, 2015 |  | 1.4 |  | $ | 42.69 |  | $ | 54.9 |  | 1.4
Schedule of RSUs | The following table summarizes the status of our RSUs and related transactions for each of the following years (in millions, except for weighted average grant‑date fair value data and weighted average remaining contractual life):
RSUs Outstanding
|  |  |  |  |  |  |  |  |  | Weighted
|  |  |  |  |  |  |  |  |  | Average
|  |  |  | Weighted |  |  |  |  | Remaining
|  |  |  | Average |  |  | Aggregate |  | Contractual
|  |  |  | Grant-date |  |  | Intrinsic |  | Life
|  | RSUs |  | Fair Value |  |  | Value |  | (in Years)
As of December 31, 2012 |  | 1.0 |  | $ | 34.06 |  | $ | 39.9 |  | 1.5
Granted |  | — |  |  | 40.59 |  |  |  |  |
Issued |  | (0.3) |  |  | 32.00 |  |  |  |  |
Forfeited |  | — |  |  | 35.92 |  |  |  |  |
As of December 31, 2013 |  | 0.7 |  |  | 35.61 |  |  | 31.8 |  | 1.3
Granted |  | 0.3 |  |  | 44.34 |  |  |  |  |
Issued |  | (0.2) |  |  | 36.67 |  |  |  |  |
Forfeited |  | - |  |  | 40.25 |  |  |  |  |
As of December 31, 2014 |  | 0.8 |  |  | 38.55 |  |  | 36.9 |  | 1.5
Granted |  | 0.2 |  |  | 51.00 |  |  |  |  |
Issued |  | (0.3) |  |  | 38.80 |  |  |  |  |
Forfeited |  | — |  |  | 42.65 |  |  |  |  |
As of December 31, 2015 |  | 0.7 |  | $ | 43.10 |  | $ | 28.0 |  | 1.7
Schedule of outstanding and exercisable SSAR Awards | The following table summarizes the status of our outstanding and exercisable SSAR Awards and related transactions for each of the following years (in millions, except weighted average exercise price and weighted average remaining contractual life data):
|  | SSAR Awards Outstanding |  | SSAR Awards Exercisable
|  |  |  |  |  |  |  | Weighted |  |  |  |  |  |  |  | Weighted
|  |  |  |  |  |  |  | Average |  |  |  |  |  |  |  | Average
|  |  |  | Weighted |  |  |  | Remaining |  |  |  | Weighted |  |  |  | Remaining
|  |  |  | Average |  | Aggregate |  | Contractual |  |  |  | Average |  | Aggregate |  | Contractual
|  | SSAR |  | Exercise |  | Intrinsic |  | Life |  | SSAR |  | Exercise |  | Intrinsic |  | Life
|  | Awards |  | Price |  | Value |  | (in Years) |  | Awards |  | Price |  | Value |  | (in Years)
As of December 31, 2012 |  | 0.4 |  | $ | 15.30 |  | $ | 10.9 |  | 0.6 |  | 0.3 |  |  | 16.02 |  |  | 8.1 |  | 0.7
Granted |  | 0.2 |  |  | 41.42 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  | (0.4) |  |  | 14.07 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  | — |  |  | 37.34 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As of December 31, 2013 |  | 0.2 |  |  | 37.69 |  |  | 1.5 |  | 3.6 |  | — |  |  | 23.25 |  |  | 1.1 |  | 1.0
Exercised |  | — |  |  | 22.26 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  | — |  |  | 40.91 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As of December 31, 2014 |  | 0.2 |  |  | 40.06 |  |  | 1.5 |  | 3.0 |  | — |  | $ | 35.81 |  | $ | 0.6 |  | 2.2
Granted |  | — |  |  | 57.48 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  | — |  |  | 25.08 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As of December 31, 2015 |  | 0.2 |  | $ | 42.91 |  | $ | — |  | 2.5 |  | — |  | $ | 42.06 |  | $ | — |  | 2.2
Schedule of unrecognized compensation cost |
Year Ended December 31, |  |  |
2016 |  | $ | 14.6
2017 |  |  | 10.8
2018 |  |  | 5.7
2019 |  |  | 1.3
2020 |  |  | 0.2
|  | $ | 32.6
Schedule of components of other comprehensive income and accumulated other comprehensive loss | Our other comprehensive loss, consisting of foreign currency translation adjustments related to our subsidiaries that have a functional currency other than the U.S. dollar and cash flow hedges, was as follows (in millions):
|  | Foreign |  |  |  |  | Accumulated
|  | Currency |  |  |  |  | Other
|  | Translation |  | Cash |  | Comprehensive
|  | Adjustments |  | Flow Hedges |  | Loss
Balance as of December 31, 2013 |  | $ | (29.3) |  | $ | — |  | $ | (29.3)
Other comprehensive loss |  |  | (30.9) |  |  | — |  |  | (30.9)
Balance as of December 31, 2014 |  |  | (60.2) |  |  | — |  |  | (60.2)
Other comprehensive loss |  |  | (49.6) |  |  | 0.6 |  |  | (49.0)
Less: Net other comprehensive income attributable to noncontrolling interest |  |  | 4.0 |  |  | — |  |  | 4.0
Balance as of December 31, 2015 |  | $ | (113.8) |  | $ | 0.6 |  | $ | (113.2)

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