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Accounts Receivable | 12 Months Ended
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Dec. 31, 2015
Accounts Receivable |
Accounts Receivable | 2. Accounts Receivable We had accounts receivable of $1.8 billion and $2.3 billion, net of an allowance for bad debt of $25.0 million and $25.7 million, as of December 31, 2015 and 2014, respectively. Accounts receivable are written‑off when it becomes apparent based upon age or customer circumstances that such amounts will not be collected. The following table sets forth activities in our allowance for bad debt (in millions):
|  | 2015 |  | 2014 |  | 2013
Balance as of beginning of period |  | $ | 25.7 |  | $ | 29.1 |  | $ | 23.7
Charges to provision for bad debt |  |  | 7.5 |  |  | 3.8 |  |  | 11.7
Write-off of uncollectible accounts receivable |  |  | (8.3) |  |  | (8.0) |  |  | (6.9)
Recoveries of bad debt |  |  | 0.5 |  |  | 0.8 |  |  | 0.6
Translation Adjustments |  |  | (0.4) |  |  | — |  |  | —
Balance as of end of period |  | $ | 25.0 |  | $ | 25.7 |  | $ | 29.1
Included in accounts receivable is a retained beneficial interest related to accounts receivable sold under our receivables purchase agreements. The retained beneficial interest was not significant as of December 31, 2015 and 2014.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5066-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5162-111524 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 9 + Details
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