XML 38 R36.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Fair Value Disclosure (Tables)
12 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Assets and liabilities at fair value recurring basis

Impact of GATX's Derivative Instrument On Income Statement and Other comprehensive income (loss)

Fair Value Other Financial Instruments