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Summary Of Significant Accounting Policies (Accounting Changes To Consolidated Statements of Cash Flows) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ 354 | [1] | $ 3,917 | $ 2,922 | $ 2,224 |  | $ 3,595 | [1] | $ 328 | $ 16,006 | $ 3,102 | $ 9,417 | [2] | $ 23,031 | [2] | $ 25,278 | [2] |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in net deferred tax assets |  |  |  |  |  |  |  |  |  |  |  |  | (5,060) |  | (4,067) | [2] | (14,029) | [2] |  |
Other reconciling adjustments |  |  |  |  |  |  |  |  |  |  |  |  | 19,128 |  | 5,786 |  | 18,775 |  |  |
Net changes in operating assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue and other liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 3,626 |  | (745) | [2] | 2,183 | [2] |  |
Other operating assets and liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 3,077 |  | 4,569 |  | (3,864) |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | 30,188 |  | 28,574 | [2] | 28,343 | [2] |  |
Investing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  |  |  |  |  |  | (42,861) |  | (29,710) | [2] | (9,898) | [2] |  |
Financing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by/(used in) financing activities |  |  |  |  |  |  |  |  |  |  |  |  | 11,246 |  | (27,961) | [2] | (3,275) | [2] |  |
Effect of exchange rate on cash |  |  |  |  |  |  |  |  |  |  |  |  | 742 |  | (1,449) | [2] | (2,618) | [2] |  |
Net increase (decrease) in cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  | (685) |  | (30,546) | [2] | 12,552 | [2] |  |
Cash and cash equivalents at the beginning of the year | [2] |  |  |  |  | 19,702 | [3],[4] |  |  |  |  | 50,248 | 19,702 | [3],[4] | 50,248 |  | 37,696 |  |  |
Cash and cash equivalents at the end of the year |  | 19,017 |  |  |  |  |  | 19,702 | [2],[3],[4] |  |  |  | 19,017 |  | 19,702 | [2],[3],[4] | 50,248 | [2] | $ 37,696 | [2]
Without Breakage Revenue [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | 9,032 |  |  |  |  |  |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in net deferred tax assets |  |  |  |  |  |  |  |  |  |  |  |  | (5,293) |  |  |  |  |  |  |
Other reconciling adjustments |  |  |  |  |  |  |  |  |  |  |  |  | 19,128 |  |  |  |  |  |  |
Net changes in operating assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue and other liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 4,244 |  |  |  |  |  |  |
Other operating assets and liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 3,077 |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | 30,188 |  |  |  |  |  |  |
Investing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  |  |  |  |  |  | (42,861) |  |  |  |  |  |  |
Financing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by/(used in) financing activities |  |  |  |  |  |  |  |  |  |  |  |  | 11,246 |  |  |  |  |  |  |
Effect of exchange rate on cash |  |  |  |  |  |  |  |  |  |  |  |  | 742 |  |  |  |  |  |  |
Net increase (decrease) in cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  | (685) |  |  |  |  |  |  |
Cash and cash equivalents at the beginning of the year |  |  |  |  |  | 19,702 |  |  |  |  |  |  | 19,702 |  |  |  |  |  |  |
Cash and cash equivalents at the end of the year |  | $ 19,017 |  |  |  |  |  | 19,702 |  |  |  |  | 19,017 |  | 19,702 |  |  |  |  |
Previously Reported [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,694 |  | 25,644 |  |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in net deferred tax assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (4,272) |  | (14,889) |  |  |
Other reconciling adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,786 |  | 18,775 |  |  |
Net changes in operating assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue and other liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (203) |  | 2,677 |  |  |
Other operating assets and liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,569 |  | (3,864) |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 28,574 |  | 28,343 |  |  |
Investing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (29,710) |  | (9,898) |  |  |
Financing Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by/(used in) financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (27,961) |  | (3,275) |  |  |
Effect of exchange rate on cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,449) |  | (2,618) |  |  |
Net increase (decrease) in cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (30,546) |  | 12,552 |  |  |
Cash and cash equivalents at the beginning of the year |  |  |  |  |  | $ 19,702 |  |  |  |  |  | $ 50,248 | 19,702 |  | 50,248 |  | 37,696 |  |  |
Cash and cash equivalents at the end of the year |  |  |  |  |  |  |  | $ 19,702 |  |  |  |  |  |  | 19,702 |  | 50,248 |  | 37,696 |
Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  |  |  | 385 |  | 337 |  | (366) | [5] | $ 1,800 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in net deferred tax assets |  |  |  |  |  |  |  |  |  |  |  |  | 233 |  | 205 |  | 860 |  |  |
Net changes in operating assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue and other liabilities |  |  |  |  |  |  |  |  |  |  |  |  | $ (618) |  | $ (542) |  | $ (494) |  |  |
[1] | Fourth Quarter Results included the impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).
[2] | Certain 2015 and 2014 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).
[3] | Certain 2015 balances have been reclassified to conform to the 2016 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).
[4] | Certain 2015 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).
[5] | The income tax effect of $860,000 in 2014 relates to the cumulative breakage revenue as of December 31, 2014. The tax effect of the portion that relates to years prior to 2014 was not recognized until 2014 due to full valuation allowance on our deferred tax assets in the U.S. as of December 31, 2013 and prior.

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