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Debt Senior Notes (Details) $ / shares in Units, shares in Millions | 12 Months Ended |
--- | --- | ---
Jan. 15, 2021 | Jan. 14, 2020 | Jan. 14, 2019 | Dec. 31, 2016 USD ($) $ / shares shares | Dec. 31, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  | 9.75% |
Restricted Payments Basket |  |  |  | $ 144,949,000 | $ 128,550,000
2018 Convertible Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Convertible senior subordinated notes |  |  |  | $ 86,250,000 |
Debt Instrument, Convertible, Conversion Ratio |  |  |  | 30.9478 |
Debt Instrument Convertible Principal Amount Used In Conversion Rate Calculation |  |  |  | $ 1,000 |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  |  | $ 32.31 |
Stock Issued During Period, Shares, Other | shares |  |  |  | 2.7 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 3.00% |
2017 Convertible Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Convertible senior subordinated notes |  |  |  | $ 57,500,000 |
Debt Instrument, Convertible, Conversion Ratio |  |  |  | 42.0159 |
Debt Instrument Convertible Principal Amount Used In Conversion Rate Calculation |  |  |  | $ 1,000 |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  |  | $ 23.80 |
Stock Issued During Period, Shares, Other | shares |  |  |  | 2.4 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 3.25% |
2021 Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.75% |
Senior notes |  |  |  | $ 300,000,000 |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 100.00% | 101.688% | 103.375% |  |
Percentage of our aggregate consolidated net income added to base amount of calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percent restrictions on payment of dividends |  |  |  | 50.00% |
Percentage of net cash proceeds from sale of qualified equity interests added to base and income/loss amount in calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percent restrictions on payment of dividends |  |  |  | 100.00% |
Percentage of our aggregate consolidated net income subtracted from base amount of calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percent restrictions on payment of dividends |  |  |  | 100.00% |
Base of restricted payments basket income calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Restrictions on payment of dividends |  |  |  | $ 125,000,000 |

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- Definition Including the current and noncurrent portions, the carrying value of convertible subordinated debt, as of the balance sheet date, initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. This form of debt 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, and places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + 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(22)) -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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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