Annual report pursuant to Section 13 and 15(d)

Noncontrolling Interest (Details)

v2.4.1.9
Noncontrolling Interest (Details) (Arbor Point Advisors, LLC)
Dec. 31, 2014
Arbor Point Advisors, LLC
 
Noncontrolling Interest [Line Items]  
Ownership percentage by parent 80.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ dei_LegalEntityAxis
= lts_ArborPointAdvisorsLlcMember
Ownership percentage by noncontrolling owners 20.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= lts_ArborPointAdvisorsLlcMember