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Debt - Schedule of Debt (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Debt Instrument [Line Items] |  |  |  |  |
Debt, gross | $ 2,989,230,000 |  | $ 2,989,230,000 |  | $ 2,870,993,000
Unamortized discounts on unsecured senior notes | (3,900,000) |  | (3,900,000) |  | (4,143,000)
Deferred financing costs, net | (30,401,000) |  | (30,401,000) |  | (33,353,000)
Total debt per balance sheet | 2,954,929,000 |  | 2,954,929,000 |  | 2,833,497,000
Amortization of financing costs |  |  | 3,697,000 | $ 3,712,000 |
Asset-backed Securitizations, Unsecured Senior Notes and Term Loan Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Amortization of financing costs | 1,500,000 | $ 1,500,000 | 3,000,000.0 | $ 3,000,000.0 |
Secured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt, gross | $ 1,959,230,000 |  | $ 1,959,230,000 |  | 1,970,993,000
Secured Debt | 2014-SFR 2 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 4.42% |  | 4.42% |  |
Debt, gross | $ 482,812,000 |  | $ 482,812,000 |  | 485,828,000
Secured Debt | 2014-SFR 3 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 4.40% |  | 4.40% |  |
Debt, gross | $ 497,897,000 |  | $ 497,897,000 |  | 501,393,000
Secured Debt | 2015-SFR 1 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 4.14% |  | 4.14% |  |
Debt, gross | $ 523,797,000 |  | $ 523,797,000 |  | 526,560,000
Secured Debt | 2015-SFR 2 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 4.36% |  | 4.36% |  |
Debt, gross | $ 454,724,000 |  | $ 454,724,000 |  | 457,212,000
Senior Notes | 2028 unsecured senior notes, net |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 4.25% |  | 4.25% |  |
Effective interest rate | 4.08% |  | 4.08% |  |
Debt, gross | $ 500,000,000 |  | $ 500,000,000 |  | 500,000,000
Senior Notes | 2029 unsecured senior notes, net |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 4.90% |  | 4.90% |  |
Debt, gross | $ 400,000,000 |  | $ 400,000,000 |  | 400,000,000
Line of Credit | Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest Rate | 1.36% |  | 1.36% |  |
Debt, gross | $ 130,000,000 |  | $ 130,000,000 |  | 0
Maximum borrowing capacity | 800,000,000.0 |  | 800,000,000.0 |  |
Outstanding letters of credit | $ 3,700,000 |  | $ 3,700,000 |  | $ 6,200,000
Line of Credit | Revolving Credit Facility | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 1.20% |  |

X
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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=120398452&loc=d3e534808-122878 + Details
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