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Commitments and Contingencies | 12 Months Ended
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Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies | Commitments and Contingencies Operating Lease Commitments Rental expense, net of rental income was $55.3 million, $56.0 million and $54.8 million during the years ended December 31, 2018, 2017 and 2016, respectively. For years subsequent to December 31, 2018, future minimum payments for all operating lease obligations that have initial non-cancelable lease terms exceeding one year, net of rental income from subleases are as follows.
| Operating Leases |  | Sublease Rental Income
2019 | $ | 49,757 |  |  | $ | 4,760 |
2020 | 47,084 |  |  | 3,944 |
2021 | 44,480 |  |  | 3,864 |
2022 | 24,471 |  |  | 707 |
2023 | 20,309 |  |  | 614 |
Thereafter | 75,190 |  |  | 939 |
Total | $ | 261,291 |  |  | $ | 14,828 |
Contingencies We are subject to legal actions arising in the ordinary course of business. In management’s opinion, we believe we have adequate legal defenses and/or insurance coverage with respect to the eventuality of such actions. We do not believe any settlement or judgment relating to any pending legal action would materially affect our financial position or results of operations.

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- Definition The entire disclosure for commitments and contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -URI http://asc.fasb.org/topic&trid=2127136 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -URI http://asc.fasb.org/topic&trid=2144648 + Details
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