XML 59 R45.htm IDEA: XBRL DOCUMENT v3.19.1
Summary of Significant Accounting Policies - Income Per Share, Allowance for Doubful Accounts, Income Taxes, and Concentration of Credit Risk (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Income (Loss) Per Share-Basic and Diluted    
Income (loss) from continuing operations $ 30,476 $ 45,614
Less: Net Income (Loss) Attributable to Noncontrolling Interests 891 468
Income (loss) from continuing operations (utilized in numerator of Earnings Per Share calculation) 29,585 45,146
Income (loss) from discontinued operations, net of tax (24) (462)
Net income (loss) attributable to Iron Mountain Incorporated $ 29,561 $ 44,684
Weighted-average shares—basic 286,528,000 285,259,000
Effect of dilutive potential stock options (in shares) 231,402 249,564
Effect of dilutive potential restricted stock, RSUs and PUs (in shares) 732,421 484,314
Weighted-average shares—diluted 287,491,823 285,992,878
Earnings (Losses) per share-basic:    
Income (Loss) from continuing operations (in dollars per share) $ 0.10 $ 0.16
Total (loss) income discontinued operations (in dollars per share) 0.00 0.00
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share) 0.10 0.16
Earnings (Losses) per share-diluted:    
Income (Loss) from continuing operations (in dollars per share) 0.10 0.16
Total (loss) income from discontinued operations (in dollars per share) 0.00 0.00
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share) $ 0.10 $ 0.16
Antidilutive stock options, RSUs and PUs, excluded from the calculation (in shares) 3,985,161 3,242,141
Income Taxes:    
Effective tax rates (as a percent) 25.70% 2.50%
Income (Loss) From Continuing Operations Before Income Taxes, Minority Interest, and (Gain) Loss on Disposition of Real Estate $ 41,029 $ 46,782
Federal statutory tax rate (as a percent) 21.00% 21.00%
Concentrations of Credit Risk    
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount   $ 14,000