Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Minimum Lease Payments And Sublease Rentals) (Detail)

v2.4.1.9
Commitments and Contingencies (Minimum Lease Payments And Sublease Rentals) (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Mar. 31, 2013
Lease Commitments    
2015 $ 9,479us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent $ 599us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 6,501us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears  
2017 5,240us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears  
2018 1,726us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears  
2019 1,095us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears  
Thereafter 1,879us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter  
Total 25,920us-gaap_OperatingLeasesFutureMinimumPaymentsDue 2,995us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Sublease Rentals    
2015 2,059lts_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsNextTwelveMonths  
2016 4lts_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsinTwoYears  
2017 0lts_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsinThreeYears  
2018 0lts_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsinFourYears  
2019 0lts_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsinFiveYears  
Thereafter 0lts_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsThereafter  
Total 2,063us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals  
Net    
2015 7,420lts_LeasesFutureMinimumPaymentsDueNextTwelveMonths  
2016 6,497lts_LeasesFutureMinimumPaymentsDueinTwoYears  
2017 5,240lts_LeasesFutureMinimumPaymentsDueinThreeYears  
2018 1,726lts_LeasesFutureMinimumPaymentsDueinFourYears  
2019 1,095lts_LeasesFutureMinimumPaymentsDueinFiveYears  
Thereafter 1,879lts_LeasesFutureMinimumPaymentsDueThereafter  
Total $ 23,857lts_LeasesFutureMinimumPaymentsDue