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Annual report pursuant to Section 13 and 15(d)

STOCK COMPENSATION PLANS STOCK COMPENSATION PLANS (Share Based Compensation Arrangement by Share-based Payment Award) (Details)

v3.3.1.900
STOCK COMPENSATION PLANS STOCK COMPENSATION PLANS (Share Based Compensation Arrangement by Share-based Payment Award) (Details) - USD ($)
3 Months Ended 12 Months Ended
Feb. 09, 2015
Dec. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Ìý 490,902 Ìý Ìý Ìý Ìý 490,902 Ìý Ìý Ìý
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Ìý $ 9.67 Ìý Ìý Ìý Ìý $ 9.67 Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Ìý $ 0 Ìý Ìý Ìý Ìý $ 0 Ìý Ìý Ìý
Option Indexed to Issuer's Equity, Strike Price Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 13.83 Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Ìý 4,442,048 1,845,552 Ìý Ìý Ìý 4,442,048 1,845,552 Ìý Ìý
Number of performance shares granted Ìý Ìý Ìý Ìý Ìý Ìý 3,769,700 Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Ìý Ìý Ìý Ìý Ìý Ìý (720,077) Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ìý Ìý Ìý Ìý Ìý Ìý (453,127) Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý 12,008,934 Ìý Ìý Ìý Ìý 12,008,934 Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Ìý Ìý Ìý Ìý Ìý Ìý 7 years 10 months 25 days Ìý Ìý Ìý
Fair Value Ìý Ìý Ìý Ìý Ìý Ìý $ 6.78 Ìý Ìý Ìý
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Ìý 83,334 Ìý Ìý Ìý Ìý 83,334 Ìý Ìý Ìý
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price Ìý $ 13.83 Ìý Ìý Ìý Ìý $ 13.83 Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Ìý $ 0 Ìý Ìý Ìý Ìý $ 0 Ìý Ìý Ìý
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term Ìý Ìý Ìý Ìý Ìý Ìý 5 years 10 months 16 days Ìý Ìý Ìý
Restricted Awards [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Ìý 607,489 250,000 Ìý Ìý Ìý 607,489 250,000 0 0
Number of performance shares granted Ìý Ìý Ìý Ìý Ìý Ìý 412,710 250,000 0 Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Ìý Ìý Ìý Ìý Ìý Ìý 0 0 0 Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ìý Ìý Ìý Ìý Ìý Ìý (55,221) 0 0 Ìý
Restricted Stock [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Ìý 2,338,070 523,176 Ìý Ìý Ìý 2,338,070 523,176 586,084 393,787
Number of performance shares granted Ìý Ìý Ìý Ìý Ìý Ìý 2,482,415 531,030 396,844 Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Ìý Ìý Ìý Ìý Ìý Ìý (477,157) (423,822) (118,973) Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ìý Ìý Ìý Ìý Ìý Ìý (190,364) (170,116) (85,574) Ìý
Performance Shares [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Ìý 1,496,489 1,072,376 Ìý Ìý Ìý 1,496,489 1,072,376 1,040,453 772,484
Number of performance shares granted 410,105 464,470 400,000 199,450 106,120 230,265 874,575 1,233,685 806,271 Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Ìý Ìý Ìý Ìý Ìý Ìý (242,920) (796,624) (289,054) Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ìý Ìý Ìý Ìý Ìý Ìý (207,542) (405,138) (249,248) Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested or Expected to Vest, Outstanding, Number Ìý 3,934,901 Ìý Ìý Ìý Ìý 3,934,901 Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Estimated Forfeitures Ìý 96,149 27,774 32,653 16,351 142,017 111,877 Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expected to Vest Ìý 368,321 372,226 166,797 89,769 88,248 298,228 Ìý Ìý Ìý
Directors Retainer and Voluntary Shares [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Ìý 0 0 Ìý Ìý Ìý 0 0 7,329 2,880
Number of performance shares granted Ìý Ìý Ìý Ìý Ìý Ìý 0 2,281 8,136 Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Ìý Ìý Ìý Ìý Ìý Ìý 0 (9,610) (2,166) Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ìý Ìý Ìý Ìý Ìý Ìý 0 0 (1,521) Ìý
January 12, 2015 [Member] | Restricted Awards [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Grant Date Market Price Ìý Ìý Ìý Ìý Ìý Ìý $ 7.70 Ìý Ìý Ìý
Average Expected Term (Years) Ìý Ìý Ìý Ìý Ìý Ìý 6 years 5 months 20 days Ìý Ìý Ìý
Expected Volatility Ìý Ìý Ìý Ìý Ìý Ìý 75.30% Ìý Ìý Ìý
Risk-Free Interest Rate Ìý Ìý Ìý Ìý Ìý Ìý 1.60% Ìý Ìý Ìý
Dividend Yield Ìý Ìý Ìý Ìý Ìý Ìý 0.00% Ìý Ìý Ìý
Fair Value Ìý Ìý Ìý Ìý Ìý Ìý $ 5.23 Ìý Ìý Ìý
January 12, 2015 [Member] | Performance Shares [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Grant Date Market Price Ìý Ìý Ìý Ìý Ìý Ìý $ 7.70 Ìý Ìý Ìý
Average Expected Term (Years) Ìý Ìý Ìý Ìý Ìý Ìý 2 years 11 months 20 days Ìý Ìý Ìý
Expected Volatility Ìý Ìý Ìý Ìý Ìý Ìý 58.30% Ìý Ìý Ìý
Risk-Free Interest Rate Ìý Ìý Ìý Ìý Ìý Ìý 0.91% Ìý Ìý Ìý
Dividend Yield Ìý Ìý Ìý Ìý Ìý Ìý 0.00% Ìý Ìý Ìý
Fair Value Ìý Ìý Ìý Ìý Ìý Ìý $ 11.56 Ìý Ìý Ìý
Employee Plans [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý 11,917,635 Ìý Ìý Ìý Ìý 11,917,635 Ìý Ìý Ìý
Directors Plan [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý 91,299 Ìý Ìý Ìý Ìý 91,299 Ìý Ìý Ìý
Two Thousand Twelve Equity Plan and Amended Equity Plan [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share Based Goods And Nonemployee Services Transaction Valuation Method Payout Rate Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 23.00% Ìý
Grants Associated with a Prior Period Payout Exceeding Target [Member] | Two Thousand Twelve Equity Plan and Amended Equity Plan [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of performance shares granted Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 54,051 Ìý