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Guarantor/Non-Guarantor Financial Information - Schedule of Supplemental Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016
Supplemental condensed consolidating statements of cash flows |  |  |
Net cash (used in) provided by operating activities | $ 234.2 | $ 222.9 | $ 165.5
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Contributions (paid to) received from subsidiaries and affiliates |  | 0.0 | 0.0
Proceeds from disposition of business | 7.2 | 0.0 | 0.0
Purchases of property, plant and equipment | (65.9) | (67.0) | (62.4)
Proceeds from sale of property, plant and equipment | 0.0 | 4.9 | 0.2
Other | (1.0) | 0.0 | (0.2)
Net cash used in investing activities | (59.7) | (62.1) | (62.4)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings under long-term debt obligations | 863.5 | 1,332.9 | 2,233.3
Repayments of borrowings under long-term debt obligations | (988.3) | (1,471.5) | (1,867.7)
Net activity in investment in and advances from (to) subsidiaries and affiliates | 0.0 | 0.0 | 0.0
Proceeds from exercise of stock options | 20.4 | 12.8 | 15.7
Excess tax benefit from stock-based compensation | 21.8 | 0.0 | 7.0
Treasury stock repurchased | (1.3) | (44.9) | (535.0)
Payment of deferred financing costs | (8.0) | (0.5) | (6.9)
Proceeds from purchase of treasury shares by CEO | 5.0 | 0.0 | 0.0
Fees paid to lenders | 0.0 | 0.0 | (7.8)
Call premium on 2020 Senior Notes | 0.0 | 0.0 | (23.6)
Other | (3.8) | (4.0) | (0.1)
Net cash used in financing activities | (90.7) | (175.2) | (185.1)
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 7.6 | (9.4) | (6.2)
(Decrease) increase in cash and cash equivalents | 91.4 | (23.8) | (88.2)
CASH AND CASH EQUIVALENTS, beginning of period |  | 65.7 | 153.9
CASH AND CASH EQUIVALENTS, end of period | 153.9 | 41.9 | 65.7
Reportable Legal Entities | Tempur Sealy International, Inc. (Ultimate Parent) |  |  |
Supplemental condensed consolidating statements of cash flows |  |  |
Net cash (used in) provided by operating activities | (87.0) | (55.3) | (63.1)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Contributions (paid to) received from subsidiaries and affiliates |  | 0.0 | 0.0
Proceeds from disposition of business | 0.0 |  |
Purchases of property, plant and equipment | 0.0 | 0.0 | 0.0
Proceeds from sale of property, plant and equipment |  | 0.0 | 0.0
Other | 0.0 |  | 0.0
Net cash used in investing activities | 0.0 | 0.0 | 0.0
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings under long-term debt obligations | 450.0 | 0.0 | 600.0
Repayments of borrowings under long-term debt obligations | 0.0 | 0.0 | (375.0)
Net activity in investment in and advances from (to) subsidiaries and affiliates | (401.3) | 87.5 | 383.1
Proceeds from exercise of stock options | 20.4 | 12.8 | 15.7
Excess tax benefit from stock-based compensation | 21.8 |  | 7.0
Treasury stock repurchased | (1.3) | (44.9) | (535.0)
Payment of deferred financing costs | (8.0) | 0.0 | (3.1)
Proceeds from purchase of treasury shares by CEO | 5.0 |  |
Fees paid to lenders |  |  | (6.0)
Call premium on 2020 Senior Notes |  |  | (23.6)
Other | 0.0 | 0.0 | 0.0
Net cash used in financing activities | 86.6 | 55.4 | 63.1
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 0.0 | 0.0 | 0.0
(Decrease) increase in cash and cash equivalents | (0.4) | 0.1 | 0.0
CASH AND CASH EQUIVALENTS, beginning of period |  | 0.0 | 0.0
CASH AND CASH EQUIVALENTS, end of period | 0.0 | 0.1 | 0.0
Reportable Legal Entities | Combined Guarantor Subsidiaries |  |  |
Supplemental condensed consolidating statements of cash flows |  |  |
Net cash (used in) provided by operating activities | 274.7 | 376.9 | 110.7
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Contributions (paid to) received from subsidiaries and affiliates |  | (129.7) | (76.7)
Proceeds from disposition of business | 7.2 |  |
Purchases of property, plant and equipment | (49.9) | (55.8) | (43.0)
Proceeds from sale of property, plant and equipment |  | 0.8 | 0.1
Other | (0.7) |  | (0.1)
Net cash used in investing activities | (43.4) | (184.7) | (119.7)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings under long-term debt obligations | 402.9 | 603.9 | 1,523.6
Repayments of borrowings under long-term debt obligations | (988.3) | (790.8) | (1,406.2)
Net activity in investment in and advances from (to) subsidiaries and affiliates | 453.4 | 0.5 | (212.5)
Proceeds from exercise of stock options | 0.0 | 0.0 | 0.0
Excess tax benefit from stock-based compensation | 0.0 |  | 0.0
Treasury stock repurchased | 0.0 | 0.0 | 0.0
Payment of deferred financing costs | 0.0 | 0.0 | (3.8)
Proceeds from purchase of treasury shares by CEO | 0.0 |  |
Fees paid to lenders |  |  | (1.8)
Call premium on 2020 Senior Notes |  |  | 0.0
Other | (3.0) | (1.4) | (2.1)
Net cash used in financing activities | (135.0) | (187.8) | (102.8)
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 0.0 | 0.0 | 0.0
(Decrease) increase in cash and cash equivalents | 96.3 | 4.4 | (111.8)
CASH AND CASH EQUIVALENTS, beginning of period |  | 7.9 | 119.7
CASH AND CASH EQUIVALENTS, end of period | 119.7 | 12.3 | 7.9
Reportable Legal Entities | Combined Non-Guarantor Subsidiaries |  |  |
Supplemental condensed consolidating statements of cash flows |  |  |
Net cash (used in) provided by operating activities | 46.5 | (98.7) | 117.9
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Contributions (paid to) received from subsidiaries and affiliates |  | 129.7 | 76.7
Proceeds from disposition of business | 0.0 |  |
Purchases of property, plant and equipment | (16.0) | (11.2) | (19.4)
Proceeds from sale of property, plant and equipment |  | 4.1 | 0.1
Other | (0.3) |  | (0.1)
Net cash used in investing activities | (16.3) | 122.6 | 57.3
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings under long-term debt obligations | 10.6 | 729.0 | 109.7
Repayments of borrowings under long-term debt obligations | 0.0 | (680.7) | (86.5)
Net activity in investment in and advances from (to) subsidiaries and affiliates | (52.1) | (88.0) | (170.6)
Proceeds from exercise of stock options | 0.0 | 0.0 | 0.0
Excess tax benefit from stock-based compensation | 0.0 |  | 0.0
Treasury stock repurchased | 0.0 | 0.0 | 0.0
Payment of deferred financing costs | 0.0 | (0.5) | 0.0
Proceeds from purchase of treasury shares by CEO | 0.0 |  |
Fees paid to lenders |  |  | 0.0
Call premium on 2020 Senior Notes |  |  | 0.0
Other | (0.8) | (2.6) | 2.0
Net cash used in financing activities | (42.3) | (42.8) | (145.4)
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 7.6 | (9.4) | (6.2)
(Decrease) increase in cash and cash equivalents | (4.5) | (28.3) | 23.6
CASH AND CASH EQUIVALENTS, beginning of period |  | 57.8 | 34.2
CASH AND CASH EQUIVALENTS, end of period | 34.2 | 29.5 | 57.8
Eliminations |  |  |
Supplemental condensed consolidating statements of cash flows |  |  |
Net cash (used in) provided by operating activities | 0.0 | 0.0 | 0.0
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Contributions (paid to) received from subsidiaries and affiliates |  | 0.0 | 0.0
Proceeds from disposition of business | 0.0 |  |
Purchases of property, plant and equipment | 0.0 | 0.0 | 0.0
Proceeds from sale of property, plant and equipment |  | 0.0 | 0.0
Other | 0.0 |  | 0.0
Net cash used in investing activities | 0.0 | 0.0 | 0.0
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from borrowings under long-term debt obligations | 0.0 | 0.0 | 0.0
Repayments of borrowings under long-term debt obligations | 0.0 | 0.0 | 0.0
Net activity in investment in and advances from (to) subsidiaries and affiliates | 0.0 | 0.0 | 0.0
Proceeds from exercise of stock options | 0.0 | 0.0 | 0.0
Excess tax benefit from stock-based compensation | 0.0 |  | 0.0
Treasury stock repurchased | 0.0 | 0.0 | 0.0
Payment of deferred financing costs | 0.0 | 0.0 | 0.0
Proceeds from purchase of treasury shares by CEO | 0.0 |  |
Fees paid to lenders |  |  | 0.0
Call premium on 2020 Senior Notes |  |  | 0.0
Other | 0.0 | 0.0 | 0.0
Net cash used in financing activities | 0.0 | 0.0 | 0.0
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 0.0 | 0.0 | 0.0
(Decrease) increase in cash and cash equivalents | 0.0 | 0.0 | 0.0
CASH AND CASH EQUIVALENTS, beginning of period |  | 0.0 | 0.0
CASH AND CASH EQUIVALENTS, end of period | $ 0.0 | $ 0.0 | $ 0.0

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