XML 48 R35.htm IDEA: XBRL DOCUMENT
v3.21.1

Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details) | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Canadian Dollar (CAD) [Member] |  |
Currency [Line Items] |  |
Average Rates | 1.2665 | 1.3429
Average Rates % Change | 5.70% |
Euros (EUR) [Member] |  |
Currency [Line Items] |  |
Average Rates | 0.8296 | 0.9074
Average Rates % Change | 8.60% |
Polish Zloty (PLN) [Member] |  |
Currency [Line Items] |  |
Average Rates | 3.7693 | 3.9221
Average Rates % Change | 3.90% |
British Pound (GBP) [Member] |  |
Currency [Line Items] |  |
Average Rates | 0.7253 | 0.7816
Average Rates % Change | 7.20% |

X
- Definition Average foreign currency exchange rate translation. + References No definition available. + Details
Name: | cnty_AverageForeignCurrencyExchangeRateTranslation
Namespace Prefix: | cnty_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Change In Average Foreign Currency Rate + References No definition available. + Details
Name: | cnty_ChangeInAverageForeignCurrencyRate
Namespace Prefix: | cnty_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Currency [Line Items] + References No definition available. + Details
Name: | cnty_CurrencyLineItems
Namespace Prefix: | cnty_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CurrencyAxis=currency_CAD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_EUR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_PLN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_GBP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |