XML 48 R31.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Valuation and Qualifying Accounts and Reserves (Schedule II) | 12 Months Ended
--- | ---
Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts and Reserves (Schedule II) | Financial Statement Schedule Schedule II — Valuation and Qualifying Accounts and Reserves for the years ended December 31, 2019, 2018 and 2017 is set forth below. All other schedules for which provision is made in the applicable accounting regulations of the Securities and Exchange Commission are not required under the related instructions or are inapplicable and therefore have been omitted. Valuation and Qualifying Accounts and Reserves (Schedule II) Changes in the allowance for doubtful accounts were as follows:
(millions of dollars) | 2019 |  | 2018 |  | 2017
Beginning balance | $ | 45.9 |  |  | $ | 53.0 |  |  | $ | 40.5 |
Bad debt expense | 53.1 |  |  | 38.2 |  |  | 42.7 |
Uncollectible accounts written off, net of recoveries | (62.5 | ) |  | (45.3 | ) |  | (30.2 | )
Ending balance | $ | 36.5 |  |  | $ | 45.9 |  |  | $ | 53.0 |
Changes in deferred tax asset valuation allowances were as follows:
(millions of dollars) | 2019 |  | 2018 |  | 2017
Beginning balance | $ | 73.5 |  |  | $ | 44.1 |  |  | $ | 17.3 |
Additions (deductions) (1) | 7.4 |  |  | 10.6 |  |  | (0.5 | )
Acquired balances | 3.7 |  |  | 18.8 |  |  | 27.3 |
Ending balance | $ | 84.6 |  |  | $ | 73.5 |  |  | $ | 44.1 |
(1) Additions (deductions) did not have a material impact on the Income Statement in 2019, 2018 or 2017.

X
- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
Name: | srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock
Namespace Prefix: | srt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ValuationAndQualifyingAccountsAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration