Annual report pursuant to Section 13 and 15(d)

Per Share Data (Computations of Basic and Diluted Per Share) (Details)

v2.4.1.9
Per Share Data (Computations of Basic and Diluted Per Share) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Earnings Per Share [Abstract]                      
Net income (loss)                 $ 33,352us-gaap_ProfitLoss $ (522)us-gaap_ProfitLoss $ (16,354)us-gaap_ProfitLoss
Loss attributable to noncontrolling interest 19us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 20us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 21us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 21us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 19us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 23us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 13us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 13us-gaap_NetIncomeLossAttributableToNoncontrollingInterest (81)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest (68)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net income (loss) attributable to the Company 10,446us-gaap_NetIncomeLoss [1] 15,758us-gaap_NetIncomeLoss [1],[2] 2,944us-gaap_NetIncomeLoss 4,285us-gaap_NetIncomeLoss 2,531us-gaap_NetIncomeLoss 2,402us-gaap_NetIncomeLoss (5,523)us-gaap_NetIncomeLoss 136us-gaap_NetIncomeLoss 33,433us-gaap_NetIncomeLoss (454)us-gaap_NetIncomeLoss (16,354)us-gaap_NetIncomeLoss
Dividends declared on preferred stock (5,461)us-gaap_PreferredStockDividendsIncomeStatementImpact (4,848)us-gaap_PreferredStockDividendsIncomeStatementImpact (3,710)us-gaap_PreferredStockDividendsIncomeStatementImpact (3,225)us-gaap_PreferredStockDividendsIncomeStatementImpact (3,004)us-gaap_PreferredStockDividendsIncomeStatementImpact (2,879)us-gaap_PreferredStockDividendsIncomeStatementImpact (1,028)us-gaap_PreferredStockDividendsIncomeStatementImpact 0us-gaap_PreferredStockDividendsIncomeStatementImpact (17,244)us-gaap_PreferredStockDividendsIncomeStatementImpact (6,911)us-gaap_PreferredStockDividendsIncomeStatementImpact 0us-gaap_PreferredStockDividendsIncomeStatementImpact
Net income (loss) available to common shareholders $ 4,985us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic [1] $ 10,910us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic [1],[2] $ (766)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 1,060us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (473)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (477)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (6,551)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 136us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 16,189us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (7,365)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (16,354)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Weighted average common shares outstanding – basic 184,805,171us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 182,988,516us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 181,739,505us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 181,502,068us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 180,513,628us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 181,759,305us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 183,488,108us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 183,459,124us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 182,768,494us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 182,295,476us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 183,572,582us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Effect of dilutive securities:                      
Options to purchase common stock                 15,411,800lts_OptionstoPurchaseCommonStock 0lts_OptionstoPurchaseCommonStock 0lts_OptionstoPurchaseCommonStock
Warrants to purchase common stock                 8,331,539us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
Restricted shares                 604us-gaap_WeightedAverageNumberOfSharesRestrictedStock 0us-gaap_WeightedAverageNumberOfSharesRestrictedStock 0us-gaap_WeightedAverageNumberOfSharesRestrictedStock
Dilutive potential common shares                 23,743,943us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment 0us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment 0us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Weighted average common shares outstanding – dilutive 210,297,301us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 210,535,372us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 181,739,505us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 202,332,855us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 180,513,628us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 181,759,305us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 183,488,108us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 188,458,448us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 206,512,437us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 182,295,476us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 183,572,582us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Net income (loss) per common share:                      
Basic (per share) $ 0.03us-gaap_EarningsPerShareBasic [3] $ 0.06us-gaap_EarningsPerShareBasic [3] $ 0.00us-gaap_EarningsPerShareBasic [3] $ 0.01us-gaap_EarningsPerShareBasic [3]         $ 0.09us-gaap_EarningsPerShareBasic $ (0.04)us-gaap_EarningsPerShareBasic $ (0.09)us-gaap_EarningsPerShareBasic
Diluted (per share) $ 0.02us-gaap_EarningsPerShareDiluted $ 0.05us-gaap_EarningsPerShareDiluted $ 0.00us-gaap_EarningsPerShareDiluted $ 0.01us-gaap_EarningsPerShareDiluted         $ 0.08us-gaap_EarningsPerShareDiluted $ (0.04)us-gaap_EarningsPerShareDiluted $ (0.09)us-gaap_EarningsPerShareDiluted
[1] Includes deferred income tax benefit from reversal of valuation allowance of $17,255, $0.08 per share diluted (3rd quarter) and $5,575, $0.03 per share diluted (4th quarter) (see Note 11).
[2] Reflects retrospective increase of $2,955 to reflect measurement period adjustments of preliminary allocations of the purchase price related to the Highland acquisition which were finalized in the fourth quarter of 2014.
[3] Due to rounding, the sum of the quarters' basic income (loss) per common share amounts do not equal the full fiscal year amount.