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Condensed Consolidating Financial Information - Cash Flows (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 03, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Condensed Consolidating Statements Of Cash Flows |  |  |  |
Net cash provided by (used for) operating activities |  | $ 62,756 | $ 531,905 | $ 856,556
Cash flows from investing activities: |  |  |  |
Purchases of investments |  | (6,722) | (24) | (9)
Sales and maturities of investments |  | 13,069 | 739 | 961
Proceeds from merger transaction |  |  |  | 650,050
Cash paid for acquisitions of businesses, net of cash acquired |  | 9,040 | (22,278) | (80,187)
Capital expenditures |  | (574,467) | (395,455) | (867,106)
Proceeds from sales of assets and insurance claims |  | 57,933 | 34,831 | 68,206
Other |  | (856) | 64 | 1,081
Investment in unconsolidated affiliates |  |  |  | (445)
Net cash (used for) provided by investing activities |  | (502,003) | (382,123) | (227,449)
Cash flows from financing activities: |  |  |  |
Increase (decrease) in cash overdrafts |  | (188) | 3 | 645
Proceeds from issuance of long-term debt |  | 411,200 | 600,000 |
Debt issuance costs |  | (11,043) | (11,520) | (1,847)
Proceeds from revolving credit facilities |  | 725,000 | 611,500 | 3,972
Reduction in revolving credit facilities |  | (215,000) | (611,500) | (450,000)
Proceeds from (payments for) issuance of common shares |  | 8,300 | 967 | 1,296
Purchase of capped call hedge transactions |  | (40,250) |  |
Reduction of long-term debt |  | (381,814) | (493,612) | (27,478)
Dividends to shareholders | $ (17,100) | (68,503) | (50,924) | (69,363)
Proceeds from (payments for) commercial paper, net |  | 40,000 | (8,000) | (525,119)
Payments on term loan |  | (162,500) | (162,500) | (300,000)
Proceeds from (payments for) short-term borrowings |  | (543) | (6,211) | 318
Cash proceeds from equity component of exchangeable debt |  | 159,952 |  |
Noncontrolling interest contribution |  | 20,000 |  | 3,972
Distributions to noncontrolling interest |  | 7,272 |  |
Other changes |  | (8,211) | (4,732) | (7,767)
Proceeds from term loan |  |  |  | 625,000
Repurchase of common shares |  | (18,071) | (1,687) | (99,598)
Redeemable noncontrolling interest contribution |  | 61,123 |  |
Net cash (used for) provided by financing activities |  | 512,180 | (138,216) | (849,941)
Effect of exchange rate changes on cash and cash equivalents |  | (29) | (2,003) | (25,785)
Net increase (decrease) in cash and cash equivalents |  | 72,904 | 9,563 | (246,619)
Cash and cash equivalents, beginning of period |  | 264,093 | 254,530 | 501,149
Cash and cash equivalents, end of period |  | 336,997 | 264,093 | 254,530
Consolidating Adjustments |  |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |  |
Net cash provided by (used for) operating activities |  | (132,986) | (50,423) | (31,263)
Cash flows from investing activities: |  |  |  |
Cash paid for investments in consolidated affiliates |  |  | (245,459) |
Investment in unconsolidated affiliates |  | 86,060 |  |
Net cash (used for) provided by investing activities |  | 86,060 | 245,459 |
Cash flows from financing activities: |  |  |  |
Proceeds from parent contributions |  | (86,060) | 245,458 |
Dividends to shareholders |  | 11,916 | 8,942 | 9,941
Distribution from subsidiary to parent |  | 121,070 | 41,480 | 21,322
Net cash (used for) provided by financing activities |  | 46,926 | (195,036) | 31,263
Parent Company | Reportable Legal Entities |  |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |  |
Net cash provided by (used for) operating activities |  | 143,444 | 58,406 | 39,478
Cash flows from investing activities: |  |  |  |
Proceeds from merger transaction |  |  |  | 5,500
Investment in unconsolidated affiliates |  | (100) |  |
Net cash (used for) provided by investing activities |  | (100) |  | 5,500
Cash flows from financing activities: |  |  |  |
Proceeds from (payments for) issuance of common shares |  | 8,299 | 967 | 1,296
Dividends to shareholders |  | (80,419) | (59,866) | (79,304)
Proceeds from issuance of intercompany debt |  | 57,000 | 45,500 |
Paydown of intercompany debt |  | (102,000) | (40,000) | (27,000)
Other changes |  | (8,210) | (4,732) | (7,767)
Repurchase of common shares |  | (18,071) |  |
Proceeds (issuance) of intercompany debt |  |  |  | 67,500
Net cash (used for) provided by financing activities |  | (143,401) | (58,131) | (45,275)
Net increase (decrease) in cash and cash equivalents |  | (57) | 275 | (297)
Cash and cash equivalents, beginning of period |  | 1,148 | 873 | 1,170
Cash and cash equivalents, end of period |  | 1,091 | 1,148 | 873
Guarantor Subsidiaries | Reportable Legal Entities |  |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |  |
Net cash provided by (used for) operating activities |  | (90,229) | (233,738) | (217,685)
Cash flows from investing activities: |  |  |  |
Proceeds from merger transaction |  |  |  | 646,078
Cash paid for investments in consolidated affiliates |  |  | 86,459 |
Change in intercompany balances |  | (599,974) | (103,384) | 135,518
Net cash (used for) provided by investing activities |  | (599,974) | 16,925 | 781,596
Cash flows from financing activities: |  |  |  |
Proceeds from issuance of long-term debt |  | 411,200 | 600,000 |
Debt issuance costs |  | (11,043) | (11,520) | (1,847)
Proceeds from revolving credit facilities |  | 725,000 | 610,000 |
Reduction in revolving credit facilities |  | (215,000) | (610,000) | (450,000)
Proceeds from parent contributions |  | 42,980 | (159,000) |
Purchase of capped call hedge transactions |  | (40,250) |  |
Reduction of long-term debt |  | (270,269) | (350,000) |
Proceeds from (payments for) commercial paper, net |  | 40,000 | (8,000) | (525,119)
Payments on term loan |  | (162,500) | (162,500) | (300,000)
Cash proceeds from equity component of exchangeable debt |  | 159,952 |  |
Proceeds from issuance of intercompany debt |  | 20,000 |  |
Paydown of intercompany debt |  | (20,000) |  |
Proceeds from term loan |  |  |  | 625,000
Proceeds (issuance) of intercompany debt |  |  |  | 88,058
Net cash (used for) provided by financing activities |  | 680,070 | 226,980 | (563,908)
Net increase (decrease) in cash and cash equivalents |  | (10,133) | 10,167 | 3
Cash and cash equivalents, beginning of period |  | 10,177 | 10 | 7
Cash and cash equivalents, end of period |  | 44 | 10,177 | 10
Other Subsidiaries (Non-Guarantors) | Reportable Legal Entities |  |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |  |
Net cash provided by (used for) operating activities |  | 142,527 | 757,660 | 1,066,026
Cash flows from investing activities: |  |  |  |
Purchases of investments |  | (6,722) | (24) | (9)
Sales and maturities of investments |  | 13,069 | 739 | 961
Proceeds from merger transaction |  |  |  | (1,528)
Cash paid for acquisitions of businesses, net of cash acquired |  | 9,040 | (22,278) | (80,187)
Cash paid for investments in consolidated affiliates |  |  | 159,000 |
Capital expenditures |  | (574,467) | (395,455) | (867,106)
Proceeds from sales of assets and insurance claims |  | 57,933 | 34,831 | 68,206
Change in intercompany balances |  | 599,974 | 103,384 | (135,518)
Other |  | (856) | 64 | 1,081
Investment in unconsolidated affiliates |  | (85,960) |  | (445)
Net cash (used for) provided by investing activities |  | 12,011 | (644,507) | (1,014,545)
Cash flows from financing activities: |  |  |  |
Increase (decrease) in cash overdrafts |  | (188) | 3 | 645
Proceeds from revolving credit facilities |  |  | 1,500 | 3,972
Reduction in revolving credit facilities |  |  | (1,500) |
Proceeds from parent contributions |  | 43,080 | (86,458) |
Proceeds from (payments for) issuance of common shares |  | 1 |  |
Reduction of long-term debt |  | (111,545) | (143,612) | (27,478)
Proceeds from (payments for) short-term borrowings |  | (543) | (6,211) | 318
Proceeds from issuance of intercompany debt |  | (77,000) | (45,500) |
Noncontrolling interest contribution |  | 20,000 |  |
Paydown of intercompany debt |  | 122,000 | 40,000 | 27,000
Distributions to noncontrolling interest |  | 7,272 |  |
Distribution from subsidiary to parent |  | (121,070) | (41,480) | (21,322)
Other changes |  | (1) |  |
Repurchase of common shares |  |  | (1,687) | (99,598)
Redeemable noncontrolling interest contribution |  | 61,123 |  |
Proceeds (issuance) of intercompany debt |  |  |  | (155,558)
Net cash (used for) provided by financing activities |  | (71,415) | (112,029) | (272,021)
Effect of exchange rate changes on cash and cash equivalents |  | (29) | (2,003) | (25,785)
Net increase (decrease) in cash and cash equivalents |  | 83,094 | (879) | (246,325)
Cash and cash equivalents, beginning of period |  | 252,768 | 253,647 | 499,972
Cash and cash equivalents, end of period |  | $ 335,862 | $ 252,768 | $ 253,647

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- Definition For the entity and the disposal group, cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. + References No definition available. + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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- Definition The net cash outflow or inflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 27 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3581-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 + Details
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- Definition The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The net cash inflow or outflow from the excess drawing from an existing cash balance, which will be honored by the bank but reflected as a loan to the drawer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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