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Deferred Revenue-entry of right-to-use contracts and Deferred Commission Expense (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Deferred Revenue, by Arrangement, Disclosure | 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 Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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- References No definition available. + Details
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