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Condensed Consolidated Statement Of Changes In Shareholder's Equity (USD $)
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Total
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Advisory Board And Consultants
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Employees
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Preferred Stock
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Common Stock
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Additional Paid-In Capital
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Additional Paid-In Capital
Advisory Board And Consultants
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Additional Paid-In Capital
Employees
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Accumulated Deficit
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Noncontrolling Interest
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|---|---|---|---|---|---|---|---|---|---|---|
| Ending Balance at Dec. 31, 2014 | $ 336,471,000us-gaap_StockholdersEquity |
$ 1,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
$ 18,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
$ 460,446,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
$ (124,005,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
$ 11,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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| Beginning Balance (in shares) at Dec. 31, 2014 |
11,096,231us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
184,968,487us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
| Issuance of common stock under employee stock purchase plan (in shares) |
51,983us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Issuance of common stock under employee stock purchase plan | 190,000us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan |
190,000us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Exercise of stock options, (in shares) | 489,584us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised |
489,584us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
||||||||
| Exercise of stock options | 623,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |
623,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Stock-based compensation |
1,667,000us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_TitleOfIndividualAxis = lts_AdvisoryBoardAndConsultantsMember |
1,593,000us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_TitleOfIndividualAxis = lts_EmployeeMember |
1,667,000us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember / us-gaap_TitleOfIndividualAxis = lts_AdvisoryBoardAndConsultantsMember |
1,593,000us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember / us-gaap_TitleOfIndividualAxis = lts_EmployeeMember |
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| Issuance of restricted stock, (in shares) |
1,143,581us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Issuance of restricted stock | 1,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross |
1,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Repurchase and retirement of common stock (in shares) |
(403,841)us-gaap_StockRepurchasedAndRetiredDuringPeriodShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
|||||||||
| Repurchase and retirement of common stock | (1,589,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue |
(1,589,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Preferred stock issued, net of underwriting discount and expenses of $1,447, (in shares) |
2,952,939us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
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| Preferred stock issued, net of underwriting discount and expenses of $1,447 | 69,476,000us-gaap_StockIssuedDuringPeriodValueNewIssues |
69,476,000us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
||||||||
| Preferred stock dividends declared and paid | (6,332,000)us-gaap_Dividends |
(6,332,000)us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
||||||||
| Net loss | (3,572,000)us-gaap_ProfitLoss |
(3,552,000)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
(20,000)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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| Ending Balance at Mar. 31, 2015 | $ 398,528,000us-gaap_StockholdersEquity |
$ 1,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
$ 19,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
$ 526,074,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
$ (127,557,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
$ (9,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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| Ending Balance (in shares) at Mar. 31, 2015 |
14,049,170us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
186,249,794us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
| X | ||||||||||
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- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
|
| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued during the period as a result of an employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate change in value for stock issued during the period as a result of employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate value of stock related to Restricted Stock Awards issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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