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Recent Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Income Statement Related Disclosures [Abstract] |  |  |
Net sales | $ 3,606.4 | $ 3,256.0 |
Gross profit | 603.9 | $ 553.5 |
Gross profit margin |  | 17.00% |
Income from operations | 204.1 | $ 170.7 |
Income tax (expense) benefit | (38.7) | (16.3) |
Net income | $ 127.0 | $ 58.2 |
Net income per common share: |  |  |
Basic (in dollars per share) | $ 0.83 | $ 0.36 |
Diluted (in dollars per share) | $ 0.82 | $ 0.36 |
Balance Sheet Related Disclosures [Abstract] |  |  |
Accounts receivable, net of allowance for doubtful accounts of $6.2 for both periods | $ 2,274.0 |  | $ 2,329.3
Merchandise inventory | 485.8 |  | 411.5
Miscellaneous receivables | 310.2 |  | 343.0
Prepaid expenses and other | 188.9 |  | 168.3
Total current assets | 3,479.9 |  | 3,396.3
Other assets | 47.1 |  | 32.7
Total assets | 7,027.9 |  | 6,966.7
Contract liabilities | 193.6 |  | 158.8
Income taxes | 56.7 |  | 16.2
Other | 204.9 |  | 221.8
Total current liabilities | 2,582.5 |  | 2,522.1
Total liabilities |  |  | 5,981.1
Total stockholders’ equity | $ 996.9 |  | 982.9
Total stockholders’ equity |  |  | 985.6
As Reported |  |  |
Income Statement Related Disclosures [Abstract] |  |  |
Net sales |  | $ 3,324.7 |
Gross profit |  | $ 552.6 |
Gross profit margin |  | 16.60% |
Income from operations |  | $ 169.8 |
Income tax (expense) benefit |  | (16.0) |
Net income |  | $ 57.6 |
Net income per common share: |  |  |
Basic (in dollars per share) |  | $ 0.36 |
Diluted (in dollars per share) |  | $ 0.35 |
Balance Sheet Related Disclosures [Abstract] |  |  |
Accounts receivable, net of allowance for doubtful accounts of $6.2 for both periods |  |  | 2,320.5
Merchandise inventory |  |  | 449.5
Miscellaneous receivables |  |  | 336.5
Prepaid expenses and other |  |  | 127.4
Total current assets |  |  | 3,378.1
Other assets |  |  | 40.8
Total assets |  |  | 6,956.6
Contract liabilities |  |  | 194.0
Income taxes |  |  | 15.1
Other |  |  | 180.2
Total current liabilities |  |  | 2,514.6
Total liabilities |  |  | 5,973.7
Total stockholders’ equity |  |  | 982.9
New Revenue Standard Adjustment | Accounting Standards Update 2014-09 |  |  |
Income Statement Related Disclosures [Abstract] |  |  |
Net sales |  | $ (68.7) |
Gross profit |  | $ 0.9 |
Gross profit margin |  | 0.40% |
Income from operations |  | $ 0.9 |
Income tax (expense) benefit |  | (0.3) |
Net income |  | $ 0.6 |
Net income per common share: |  |  |
Basic (in dollars per share) |  | $ 0.00 |
Diluted (in dollars per share) |  | $ 0.01 |
Balance Sheet Related Disclosures [Abstract] |  |  |
Accounts receivable, net of allowance for doubtful accounts of $6.2 for both periods |  |  | 8.8
Merchandise inventory |  |  | (38.0)
Miscellaneous receivables |  |  | 6.5
Prepaid expenses and other |  |  | 40.9
Total current assets |  |  | 18.2
Other assets |  |  | (8.1)
Total assets |  |  | 10.1
Contract liabilities |  |  | (35.2)
Income taxes |  |  | 1.1
Other |  |  | 41.6
Total current liabilities |  |  | 7.5
Total liabilities |  |  | 7.5
Total stockholders’ equity |  |  | $ 2.7

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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: 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(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 3: 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(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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