v3.3.1.900

Share-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of Expense Related to Share-Based Compensation Cost by Type of Program | A summary of the expense related to share-based compensation cost by type of program is as follows:
|  | Year Ended December 31, |
(In millions) |  | 2015 |  |  | 2014 |  |  | 2013 |
Restricted stock units expense |  | $ | 10.2 |  |  | $ | 16.5 |  |  | $ | 10.6 |
Stock options expense |  |  | - |  |  |  | 0.5 |  |  |  | 1.0 |
Before-tax share-based compensation expense |  |  | 10.2 |  |  |  | 17.0 |  |  |  | 11.6 |
Income tax benefit |  |  | (3.3 | ) |  |  | (6.0 | ) |  |  | (3.9 | )
After-tax share-based compensation expense |  | $ | 6.9 |  |  | $ | 11.0 |  |  | $ | 7.7 |
Summary of Stock Option Activity Under All Plans | A summary of stock option activity under all plans as of and for the year ended December 31, 2015 is as follows:
|  | Shares |  |  | Weighted Average Remaining Contractual Terms (Years) |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value (In millions) |
Outstanding on January 1, 2015 |  |  | 289,064 |  |  |  |  |  |  | $ | 116.40 |  |  |  |  |
Granted |  |  | - |  |  |  |  |  |  |  | - |  |  |  |  |
Exercised |  |  | (17,324) |  |  |  |  |  |  |  | 31.72 |  |  |  |  |
Expired |  |  | (3,129) |  |  |  |  |  |  |  | 1,183.96 |  |  |  |  |
Outstanding on December 31, 2015 |  |  | 268,611 |  |  |  | 4.4 years |  |  | $ | 109.42 |  |  | $ | - |
Vested as of December 31, 2015 |  |  | 268,611 |  |  |  | 4.4 years |  |  | $ | 109.42 |  |  | $ | - |
Expected to vest as of December 31, 2015 |  |  | - |  |  |  | 0.0 years |  |  | $ | - |  |  | $ | - |
Summary of Information about Stock Options Outstanding by Range of Exercise Prices | The following table summarizes information about stock options outstanding at December 31, 2015:
|  | Outstanding |  |  | Exercisable |
Range of Exercise Prices |  | Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life |  |  | Shares |  |  | Weighted Average Exercise Price |
$8.74 to $25.00 |  |  | 38,572 |  |  | $ | 21.25 |  |  |  | 3.2 years |  |  |  | 38,572 |  |  | $ | 21.25 |
$25.01 to $41.50 |  |  | 173,989 |  |  |  | 33.87 |  |  |  | 5.6 years |  |  |  | 173,989 |  |  |  | 33.87 |
$75.00 to $476.00 |  |  | 24,998 |  |  |  | 172.47 |  |  |  | 2.1 years |  |  |  | 24,998 |  |  |  | 172.47 |
$476.01 to $1,334.50 |  |  | 31,052 |  |  |  | 591.52 |  |  |  | 0.8 years |  |  |  | 31,052 |  |  |  | 591.52 |
$8.74 to $1,344.50 |  |  | 268,611 |  |  |  | 109.42 |  |  |  | 4.4 years |  |  |  | 268,611 |  |  |  | 109.42 |
Summary of Restricted Stock Unit Activity Under All Plans | A summary of restricted stock unit activity under all plans as of and for the year ended December 31, 2015 is as follows:
|  | Shares |  |  | Weighted Average Remaining Contractual Terms (Years) |  |  | Weighted Average Grant Date Fair Value |  |  | Aggregate Intrinsic Value (In millions) |
Outstanding on January 1, 2015 |  |  | 972,843 |  |  |  |  |  |  | $ | 41.30 |  |  |  |  |
Granted |  |  | 519,852 |  |  |  |  |  |  |  | 36.15 |  |  |  |  |
Vested and released |  |  | (495,337) |  |  |  |  |  |  |  | 37.43 |  |  |  |  |
Forfeited |  |  | (427,260) |  |  |  |  |  |  |  | 42.40 |  |  |  |  |
Outstanding on December 31, 2015 |  |  | 570,098 |  |  |  | 1.2 Years |  |  | $ | 40.55 |  |  | $ | 9.1 |
Vested or expected to vest as of December 31, 2015 |  |  | 596,048 |  |  |  | 1.2 Years |  |  | $ | 41.01 |  |  | $ | 10.8 |
Expected to vest as of December 31, 2015 |  |  | 576,378 |  |  |  | 1.2 Years |  |  | $ | 40.56 |  |  | $ | 8.9 |
Weighted Average Assumptions Used in Monte Carlo Simulation Model to Estimate Fair Value of PRSUs Granted | The weighted averages for the primary assumptions used in the Monte Carlo simulation model for the 2015 and 2014 grants are as follows:
|  | PRSU Grants Year Ended December 31, |
|  | 2015 |  |  | 2014 |
Assumptions: |  |  |  |  |  |  |  |
Risk-free interest rate |  |  | 1.01% |  |  |  | 0.79% |
Expected life |  |  | 3.0 years |  |  |  | 3.0 years |
Expected volatility |  |  | 37% |  |  |  | 43% |

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock units and deferred stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units and deferred stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | axll_ScheduleOfShareBasedCompensationRestrictedStockUnitsAndDeferredStockUnitsActivityTableTextBlock
Namespace Prefix: | axll_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of performance-based restricted stock units, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References No definition available. + Details
Name: | axll_ScheduleOfShareBasedPaymentAwardPerformanceBasedRestrictedStockUnitsValuationAssumptionsTableTextBlock
Namespace Prefix: | axll_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration