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Deferred Revenue-Right-to-use contracts and Deferred Commission Expense | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Deferred Revenue-Right-to-use contracts and Deferred Commission Expense | Deferred Revenue Entry of Right-to-Use Contracts and Deferred Commission Expense The components of the change in deferred revenue entry of right-to-use contracts and deferred commission expense were as follows:
|  | As of
(amounts in thousands) |  | 2018 |  | 2017
Deferred revenue as of December 31, |  | $ | 85,596 |  |  | $ | 81,484 |
Cumulative effect of change in accounting principle (a) |  | 23,387 |  |  | — |
Deferred revenue as of January 1, |  | 108,983 |  |  | 81,484 |
Right-to-use contracts current period, gross |  | 15,191 |  |  | 14,132 |
Revenue recognized from right-to-use contract upfront payments |  | (7,811 | ) |  | (10,020 | )
Right-to-use contract upfront payments, deferred, net |  | 7,380 |  |  | 4,112 |
Deferred revenue—upfront payments from right-to-use contracts as of December 31, |  | $ | 116,363 |  |  | $ | 85,596 |
Deferred commission expense as of December 31 |  | $ | 31,443 |  |  | $ | 31,375 |
Cumulative effect of change in accounting principle (a) |  | 8,200 |  |  | — |
Deferred commission expense as of January 1, |  | 39,643 |  |  | 31,375 |
Deferred commission expense |  | 4,274 |  |  | 4,577 |
Commission expense recognized |  | (3,609 | ) |  | (4,509 | )
Net increase in deferred commission expense |  | 665 |  |  | 68 |
Deferred commission expense as of December 31, |  | $ | 40,308 |  |  | $ | 31,443 |
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(a) | The cumulative effect adjustments resulting from the adoption of ASU 2014-09 as of January 1, 2018. See Note 2 for further details.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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