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Regulatory Matters - Additional Information (Details) | 3 Months Ended
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Mar. 31, 2016
Regulatory Capital Requirements [Abstract] |
Capital conservation buffer rate in 2016 | 0.625%
Capital conservation buffer rate increase in 2017 | 0.625%
Capital conservation buffer rate increase in 2018 | 0.625%
Capital conservation buffer rate in 2019 | 2.50%

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- Definition Capital conservation buffer rate in fiscal year. + References No definition available. + Details
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- Definition Capital conservation buffer rate in year four. + References No definition available. + Details
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- Definition Capital conservation buffer rate Increase in year three. + References No definition available. + Details
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- Definition Capital conservation buffer rate Increase in year two. + References No definition available. + Details
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Namespace Prefix: | tbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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