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Commitments and Contingencies (Tables) | 3 Months Ended
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Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Warranty Reserves | Warranty reserve activity consisted of the following (in thousands):
| Three Months Ended March 31,
| 2019 |  | 2018
Warranty reserves, beginning of period | $ | 71,836 |  |  | $ | 69,373 |
Warranty reserves accrued | 4,270 |  |  | 4,746 |
Warranty expenditures | (5,159 | ) |  | (3,637 | )
Warranty reserves, end of period | $ | 70,947 |  |  | $ | 70,482 |
Schedule of Lease Costs and Other Information | See below for additional information on leases (dollars in thousands):
| Three Months Ended March 31, 2019
Lease cost |
Operating lease cost (included in SG&A expense) | $ | 2,044 |
Ground lease cost (included in other operations expense) | 590 |
Sublease income, ground leases (included in other operations revenue) | (598 | )
Net lease cost | $ | 2,036 |
Other information |
Cash paid for amounts included in the measurement of lease liabilities: |
Operating lease cash flows (included in operating cash flows) | $ | 1,609 |
Ground lease cash flows (included in operating cash flows) | $ | 608 |
Right-of-use assets obtained in exchange for new operating lease liabilities | $ | 1,707 |
| March 31, 2019
Weighted-average discount rate: |
Operating leases | 6.0 | %
Ground leases | 10.2 | %
Weighted-average remaining lease term (in years): |
Operating leases | 6.3 |
Ground leases | 49.2 |
Schedule of Future Minimum Lease Payments | The future minimum lease payments under our operating leases are as follows (in thousands):
| Property, Equipment and Other Leases |  | Ground Leases (1)
Remaining in 2019 | $ | 6,347 |  |  | $ | 2,238 |
2020 | 8,322 |  |  | 2,984 |
2021 | 7,048 |  |  | 2,984 |
2022 | 5,453 |  |  | 2,984 |
2023 | 4,349 |  |  | 2,984 |
Thereafter | 8,799 |  |  | 84,266 |
| $ | 40,318 |  |  | $ | 98,440 |
(1) Ground leases are fully subleased through 2041, representing $67.4 million of the $98.4 million future ground lease obligations.

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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