This one (like the Deltic Timber adjustment noted recently) has a favorable flavor to it: the correction, after applying both rollover and iron curtain evaluation, increased the beginning balance of retained earnings by almost 3%.
The reason? Before 2002, the company had sold multiple segments that it had reported as discontinued operations, and accrued for post-retirement employment benefits on an undiscounted basis for severed employees and retirees of the sold business. GATX retained responsibility for the liability. Subsequently, erroneously-calculated expenses for post-retirement employment benefits of the former employees in those sold businesses were charged against the accruals. GATX had previously waived them as immaterial, but the dual approach of SAB 108 resulted in their classification as material. Thus, $19.2 million was added back to opening retained earnings as of January 1, 2006.
The finer filter of SAB 108 strikes again.
GMT 1-yr chart