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Condensed Consolidating Financial Information - Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Condensed Consolidating Statements Of Cash Flows |  |  |
Net cash provided by (used for) operating activities | $ 684,558 | $ 325,773 | $ 62,756
Cash flows from investing activities: |  |  |
Purchases of investments | (4,323) | (676) | (6,722)
Sales and maturities of investments | 18,849 | 4,287 | 13,069
Cash paid for acquisition of businesses, net of cash acquired | (2,929) | (20,859) | 12,319
Capital expenditures | (427,741) | (458,938) | (574,467)
Proceeds from sales of assets and insurance claims | 60,288 | 109,098 | 57,933
Net cash (used for) provided by investing activities | (355,856) | (367,088) | (497,868)
Cash flows from financing activities: |  |  |
Proceeds from issuance of long-term debt |  | 800,000 | 411,200
Reduction of long-term debt | (455,360) | (878,278) | (381,814)
Debt issuance costs | (1,767) | (21,277) | (11,043)
Proceeds from revolving credit facilities | 1,050,000 | 1,135,000 | 725,000
Reduction in revolving credit facilities | (865,000) | (1,475,000) | (215,000)
Payments for short-term borrowings | (561) |  | (543)
Proceeds from (payments for) commercial paper, net |  | (40,000) | 40,000
Proceeds from issuance of common shares, net of issuance costs |  | 301,404 | 8,300
Dividends to common and preferred shareholders | (49,583) |  |
Redeemable noncontrolling interest contribution |  | 156,935 | 61,123
Noncontrolling interest contribution |  |  | 20,000
Distributions to noncontrolling interest | (4,552) | (5,452) | (7,272)
Other changes | (4,750) | (8,912) | (8,399)
Cash proceeds (payments) from equity component of exchangeable debt |  |  | 159,952
Purchase of capped call hedge transactions |  |  | (40,250)
Dividends to common and preferred shareholders | (49,583) | (87,098) | (68,503)
Proceeds from issuance of preferred stock, net of issuance costs |  | 277,927 |
Payments on term loan |  |  | (162,500)
Proceeds from short-term borrowings |  | 380 |
Repurchase of common shares |  |  | (18,071)
Net cash (used for) provided by financing activities | (331,573) | 155,629 | 512,180
Effect of exchange rate changes on cash and cash equivalents | (6,171) | (5,263) | (29)
Net increase (decrease) in cash, cash equivalents and restricted cash | (9,042) | 109,051 | 77,039
Cash and cash equivalents and restricted cash, beginning of period | 451,080 | 342,029 | 264,990
Cash and cash equivalents and restricted cash, end of period | 442,038 | 451,080 | 342,029
Consolidating Adjustments |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |
Net cash provided by (used for) operating activities | (64,358) | (47,497) | (132,986)
Cash flows from investing activities: |  |  |
Cash paid for investments in consolidated affiliates | 8,500 | 794,000 | 86,060
Net cash (used for) provided by investing activities | 8,500 | 794,000 | 86,060
Cash flows from financing activities: |  |  |
Dividends to common and preferred shareholders | 4,752 |  |
Proceeds from parent contributions | (8,500) | (794,000) | (86,060)
Distribution from subsidiary to parent | 59,606 | 35,012 | 121,070
Dividends to common and preferred shareholders |  | 12,485 | 11,916
Net cash (used for) provided by financing activities | 55,858 | (746,503) | 46,926
Parent Company | Reportable Legal Entities |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |
Net cash provided by (used for) operating activities | 79,910 | 86,504 | 143,444
Cash flows from investing activities: |  |  |
Cash paid for investments in consolidated affiliates |  | (587,500) | (100)
Net cash (used for) provided by investing activities |  | (587,500) | (100)
Cash flows from financing activities: |  |  |
Proceeds from issuance of common shares, net of issuance costs | 6 | 301,404 | 8,299
Dividends to common and preferred shareholders | (54,347) |  |
Proceeds from issuance of intercompany debt | 6,600 | 45,500 |
Paydown of intercompany debt | (27,700) | (21,000) | (102,000)
Other changes | (4,624) | (3,869) | (8,210)
Dividends to common and preferred shareholders |  | (99,583) | (80,419)
Proceeds from issuance of preferred stock, net of issuance costs |  | 277,927 |
Repurchase of common shares |  |  | (18,071)
Proceeds from (payments for) issuance of intercompany debt |  |  | 57,000
Net cash (used for) provided by financing activities | (80,065) | 500,379 | (143,401)
Net increase (decrease) in cash, cash equivalents and restricted cash | (155) | (617) | (57)
Cash and cash equivalents and restricted cash, beginning of period | 474 | 1,091 | 1,148
Cash and cash equivalents and restricted cash, end of period | 319 | 474 | 1,091
Guarantor Subsidiaries | Reportable Legal Entities |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |
Net cash provided by (used for) operating activities | (179,265) | (208,943) | (90,229)
Cash flows from investing activities: |  |  |
Cash paid for acquisition of businesses, net of cash acquired |  | (20,859) |
Change in intercompany balances | 449,888 | 502,856 | (599,974)
Net cash (used for) provided by investing activities | 449,888 | 481,997 | (599,974)
Cash flows from financing activities: |  |  |
Proceeds from issuance of long-term debt |  | 800,000 | 411,200
Reduction of long-term debt | (455,360) | (878,278) | (270,269)
Debt issuance costs | (1,767) | (21,277) | (11,043)
Proceeds from revolving credit facilities | 1,050,000 | 1,135,000 | 725,000
Reduction in revolving credit facilities | (865,000) | (1,475,000) | (215,000)
Proceeds from (payments for) commercial paper, net |  | (40,000) | 40,000
Paydown of intercompany debt | (7,000) |  | (20,000)
Proceeds from parent contributions | 8,500 | 206,500 | 42,980
Cash proceeds (payments) from equity component of exchangeable debt |  |  | 159,952
Purchase of capped call hedge transactions |  |  | (40,250)
Payments on term loan |  |  | (162,500)
Proceeds from (payments for) issuance of intercompany debt |  |  | 20,000
Net cash (used for) provided by financing activities | (270,627) | (273,055) | 680,070
Net increase (decrease) in cash, cash equivalents and restricted cash | (4) | (1) | (10,133)
Cash and cash equivalents and restricted cash, beginning of period | 43 | 44 | 10,177
Cash and cash equivalents and restricted cash, end of period | 39 | 43 | 44
Other Subsidiaries (Non-Guarantors) | Reportable Legal Entities |  |  |
Condensed Consolidating Statements Of Cash Flows |  |  |
Net cash provided by (used for) operating activities | 848,271 | 495,709 | 142,527
Cash flows from investing activities: |  |  |
Purchases of investments | (4,323) | (676) | (6,722)
Sales and maturities of investments | 18,849 | 4,287 | 13,069
Cash paid for acquisition of businesses, net of cash acquired | (2,929) |  | 12,319
Cash paid for investments in consolidated affiliates | (8,500) | (206,500) | (85,960)
Capital expenditures | (427,741) | (458,938) | (574,467)
Proceeds from sales of assets and insurance claims | 60,288 | 109,098 | 57,933
Change in intercompany balances | (449,888) | (502,856) | 599,974
Net cash (used for) provided by investing activities | (814,244) | (1,055,585) | 16,146
Cash flows from financing activities: |  |  |
Reduction of long-term debt |  |  | (111,545)
Payments for short-term borrowings | (561) |  | (543)
Proceeds from issuance of common shares, net of issuance costs | (6) |  | 1
Dividends to common and preferred shareholders | 12 |  |
Redeemable noncontrolling interest contribution |  | 156,935 | 61,123
Noncontrolling interest contribution |  |  | 20,000
Distributions to noncontrolling interest | (4,552) | (5,452) | (7,272)
Proceeds from issuance of intercompany debt | (6,600) | (45,500) |
Paydown of intercompany debt | 34,700 | 21,000 | 122,000
Proceeds from parent contributions |  | 587,500 | 43,080
Distribution from subsidiary to parent | (59,606) | (35,012) | (121,070)
Other changes | (126) | (5,043) | (189)
Proceeds from short-term borrowings |  | 380 |
Proceeds from (payments for) issuance of intercompany debt |  |  | (77,000)
Net cash (used for) provided by financing activities | (36,739) | 674,808 | (71,415)
Effect of exchange rate changes on cash and cash equivalents | (6,171) | (5,263) | (29)
Net increase (decrease) in cash, cash equivalents and restricted cash | (8,883) | 109,669 | 87,229
Cash and cash equivalents and restricted cash, beginning of period | 450,563 | 340,894 | 253,665
Cash and cash equivalents and restricted cash, end of period | $ 441,680 | $ 450,563 | $ 340,894

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118932676&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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3098-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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