2.4.0.81030 - Disclosure - Commitments, Contingencies, Guarantees and Indemnitiestruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001018164duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_CommitmentsAndContingenciesDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Commitments, Contingencies, Guarantees and Indemnities2false 2us-gaap_CommitmentsContingenciesAndGuaranteesTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> 3.  Commitments, Contingencies, Guarantees and Indemnities   Our principal offices are located in Novato, California. We occupy space in Novato under a lease that covers approximately 20,534 square feet of office space and expires September 30, 2018. The remaining lease rental commitment is approximately $2.9 million. Equipment leasing, financing, sales and general administrative activities are conducted from the Novato location. We also sub-lease office and warehouse space for our operations at San Diego, California. This lease expires October 31, 2013 and the remaining lease commitment is approximately $49,000. We also lease office and warehouse space in Shanghai, China. The office lease expires December 31, 2013 and the warehouse lease expires July 31, 2017 and the remaining lease commitments are approximately $32,400 and $28,300, respectively. We also lease office space in London, United Kingdom. The lease expires December 21, 2015 and the remaining lease commitment is approximately $0.2 million. We also lease office space in Blagnac, France. The lease expires December 31, 2013 and the remaining lease commitment is approximately $8,500. We lease office space in Dublin, Ireland. The lease expires May 15, 2017 and the remaining lease commitment is approximately $0.2 million.   We have made purchase commitments to secure the purchase of five engines and related equipment for a gross purchase price of $40.2 million, for delivery in 2013 to 2015. As of June 30, 2013, non-refundable deposits paid related to these purchase commitments were $1.4 million. In October 2006, we entered into an agreement with CFM International (“CFM”) to purchase new spare aircraft engines. The agreement specifies that, subject to availability, we may purchase up to a total of 45 CFM56-7B and CFM56-5B spare engines over a five year period, with options to acquire up to an additional 30 engines. Our outstanding purchase orders with CFM for three engines represent deferral of engine deliveries originally scheduled for 2009 and are included in our commitments to purchase in 2013 to 2015. </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for commitments, contingencies, and guarantees.No definition available.false0Commitments, Contingencies, Guarantees and IndemnitiesfalseCommitments, Contingencies, Guarantees and IndemnitiesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.willislease.com/role/DisclosureCommitmentsContingenciesGuaranteesAndIndemnities12