2.2.0.7 false Subsequent Events 0221 - Disclosure - Subsequent Events true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Subsequent Events [Abstract] 0 spr_SubsequentEventsAbstract spr false na duration Subsequent Events. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string Subsequent Events. false 3 Subsequent Events 1 us-gaap_ScheduleOfSubsequentEventsTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>21. Subsequent Events</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     On June 25, 2010, a 10-year contract was ratified between workers represented by the International Association of Machinists and Aerospace Workers (IAM) in Wichita, Kansas and Spirit. The contract includes an early retirement incentive for IAM workers 55 and above who voluntarily elect an early retirement date on or before September 1, 2010. As a result, the Company expects to accrue incentive payments in the third quarter of 2010. As of the date of this filing, the Company could not reasonably estimate the anticipated number of acceptances for this contract offer. </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Describes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 11 false 1 2 false UnKnown UnKnown UnKnown false true