XML 55 R36.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Share-Based Compensation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of company stock award | A summary of the status of the Company’s nonvested restricted stock awards as of June 30, 2017, and changes during the six months ended June 30, 2017, is presented below:
| Shares |  | Weighted-Average Grant Date Fair Value
Nonvested at January 1, 2017 | 602,162 |  |  | $ | 15.41 |
Granted | 326,424 |  |  | $ | 10.75 |
Vested | (245,409 | ) |  | $ | 14.79 |
Forfeited | (6,440 | ) |  | $ | 13.20 |
Nonvested at June 30, 2017 | 676,737 |  |  | $ | 13.41 |
Performance Stock Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of company stock award | The Company granted the following PSUs in the first quarter of the respective years as follows:
| PSUs granted |  | Weighted-Average Grant Date Fair Value
2015 PSUs | 138,680 |  |  | $ | 15.52 |
2016 PSUs | 282,995 |  |  | $ | 4.98 |
2017 PSUs | 277,376 |  |  | $ | 6.86 |
Schedule of Assumptions Used in the Monte Carlo Simulation Pricing Model | The following table summarizes the assumptions used in the Monte Carlo simulation pricing model related to the 2017 PSUs and the 2016 PSUs:
|  | 2017 PSUs |  | 2016 PSUs
Grant date |  | February 7, 2017 |  | February 10, 2016
Fair value per share on valuation date (1) |  | $ | 6.86 |  |  | $ | 4.98 |
Risk-free interest rate (2) |  | 1.53 | % |  | 0.92 | %
Expected share price volatility (3) |  | 32.85 | % |  | 30.95 | %
(1) | The value of the PSU awards is estimated on the date of grant using a Monte Carlo Simulation model. The valuation consisted of computing the fair value using CBL's simulated stock price as well as TSR over a three-year performance period. The award is modeled as a contingent claim in that the expected return on the underlying shares is risk-free and the rate of discounting the payoff of the award is also risk-free. The weighted-average fair value per share related to the 2017 PSUs consists of 115,082 shares at a fair value of $5.62 per share and 162,294 shares at a fair value of $7.74 per share.
(2) | The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury securities in effect as of the valuation date.
(3) | The computation of expected volatility was based on a blend of the historical volatility of CBL's shares of common stock based on annualized daily total continuous returns over a three-year period and implied volatility data based on the trailing month average of daily implied volatilities implied by stock call option contracts that were both closest to the terms shown and closest to the money.

X
- Definition Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions [Table Text Block] + References No definition available. + Details
Name: | cbl_ScheduleofSharebasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | cbl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |