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Regulatory Matters (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Company |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Common Equity Tier One Capital | $ 1,512,921 | $ 1,458,344
Common Equity Tier One Capital Ratio | 11.90% | 11.44%
Total capital (to risk-weighted assets), Amount |  |
Total Capital, Actual | $ 1,706,299 | $ 1,649,664
Total Capital, Required For Capital Adequacy Purposes | 1,017,255 | 1,019,952
Required for Capital Adequacy with Capital Buffer | 1,335,147 | 1,259,004
Tier I capital (to risk-weighted assets), Amount |  |
Tier I Capital, Actual (Risk Based) | 1,611,497 | 1,556,371
Tier I Capital, Required For Capital Adequacy Purposes | 762,941 | 764,964
Tier 1 Capital, Required for Capital Adequacy with Capital Buffer | 1,080,833 | 1,004,015
Tier I capital (to average assets), Amount |  |
Tier I Capital, Actual (Leverage) | 1,611,497 | 1,556,371
Tier I Capital, Required For Capital Adequacy Purposes | $ 589,066 | $ 590,176
Total capital and Tier I capital (to risk-weighted assets), Ratio |  |
Total Capital (to Risk Weighted Assets), Actual | 13.42% | 12.94%
Total Capital (to Risk Weighted Assets), Minimum For Capital Adequacy Purposes | 8.00% | 8.00%
Total Capital (to Risk Weighted assets), Minimum Required for Capital Adequacy with Capital Buffer | 10.50% | 9.875%
Tier I Capital (to Risk Weighted Assets), Actual (Risk Based) | 12.67% | 12.21%
Tier I Capital (to Risk Weighted Assets), Minimum For Capital Adequacy Purposes (Risk Based) | 6.00% | 6.00%
Tier 1 Capital (to Risk Weighted Assets), Minimum Required for Capital Adequacy with Capital Buffer | 8.50% | 7.875%
Tier I capital (to average assets), Ratio |  |
Tier I Capital (to Average Assets), Actual (Leverage) | 10.94% | 10.55%
Tier I Capital (to Average Assets), Minimum For Capital Adequacy Purposes (Leverage) | 4.00% | 4.00%
Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Common Equity Tier One Capital | $ 1,784,216 | $ 1,737,092
Common Equity Tier One Capital Ratio | 14.03% | 13.63%
Total capital (to risk-weighted assets), Amount |  |
Total Capital, Actual | $ 1,879,018 | $ 1,830,385
Total Capital, Required For Capital Adequacy Purposes | 1,017,134 | 1,019,910
Required for Capital Adequacy with Capital Buffer | 1,334,988 | 1,258,951
Required To Be Well Capitalized under Prompt Corrective Action Provisions | 1,271,417 | 1,274,887
Tier I capital (to risk-weighted assets), Amount |  |
Tier I Capital, Actual (Risk Based) | 1,784,216 | 1,737,092
Tier I Capital, Required For Capital Adequacy Purposes | 762,850 | 764,932
Tier 1 Capital, Required for Capital Adequacy with Capital Buffer | 889,992 | 812,740
Tier I Capital, Minimum to be Well Capitalized Under Prompt Corrective Action Provisions (Risk Based) | 1,017,134 | 1,019,910
Tier I capital (to average assets), Amount |  |
Tier I Capital, Actual (Leverage) | 1,784,216 | 1,737,092
Tier I Capital, Required For Capital Adequacy Purposes | 589,225 | 590,639
Tier I Capital, Minimum to be Well Capitalized Under Prompt Corrective Action Provisions (Leverage) | $ 736,532 | $ 738,299
Total capital and Tier I capital (to risk-weighted assets), Ratio |  |
Total Capital (to Risk Weighted Assets), Actual | 14.78% | 14.36%
Total Capital (to Risk Weighted Assets), Minimum For Capital Adequacy Purposes | 8.00% | 8.00%
Total Capital (to Risk Weighted assets), Minimum Required for Capital Adequacy with Capital Buffer | 10.50% | 9.875%
Total Capital (to Risk Weighted Assets), Minimum to be Well Capitalized Under Prompt Corrective Action Provisions | 10.00% | 10.00%
Tier I Capital (to Risk Weighted Assets), Actual (Risk Based) | 14.03% | 13.63%
Tier I Capital (to Risk Weighted Assets), Minimum For Capital Adequacy Purposes (Risk Based) | 6.00% | 6.00%
Tier 1 Capital (to Risk Weighted Assets), Minimum Required for Capital Adequacy with Capital Buffer | 8.50% | 7.875%
Common Equity Tier One Capital Required to be Well-Capitalized | $ 826,421 | $ 828,677
Tier I Capital (to Risk Weighted Assets), Minimum to be Well Capitalized Under Prompt Corrective Action Provisions (Risk Based) | 8.00% | 8.00%
Tier I capital (to average assets), Ratio |  |
Tier I Capital (to Average Assets), Actual (Leverage) | 12.11% | 11.76%
Tier I Capital (to Average Assets), Minimum For Capital Adequacy Purposes (Leverage) | 4.00% | 4.00%
Tier I Capital (to Average Assets), Minimum to be Well Capitalized Under Prompt Corrective Action Provisions (Leverage) | 5.00% | 5.00%
Common Equity Tier 1 | Company |  |
Tier I capital (to risk-weighted assets), Amount |  |
Tier I Capital, Required For Capital Adequacy Purposes | $ 572,206 | $ 573,723
Tier 1 Capital, Required for Capital Adequacy with Capital Buffer | $ 890,098 | $ 812,774
Total capital and Tier I capital (to risk-weighted assets), Ratio |  |
Tier I Capital (to Risk Weighted Assets), Minimum For Capital Adequacy Purposes (Risk Based) | 4.50% | 4.50%
Tier 1 Capital (to Risk Weighted Assets), Minimum Required for Capital Adequacy with Capital Buffer | 7.00% | 6.375%
Common Equity Tier 1 | Bank |  |
Tier I capital (to risk-weighted assets), Amount |  |
Tier I Capital, Required For Capital Adequacy Purposes | $ 572,138 | $ 573,669
Tier 1 Capital, Required for Capital Adequacy with Capital Buffer | $ 889,992 | $ 812,740
Total capital and Tier I capital (to risk-weighted assets), Ratio |  |
Tier I Capital (to Risk Weighted Assets), Minimum For Capital Adequacy Purposes (Risk Based) | 4.50% | 4.50%
Tier 1 Capital (to Risk Weighted Assets), Minimum Required for Capital Adequacy with Capital Buffer | 7.00% | 6.375%
Tier I Capital (to Risk Weighted Assets), Minimum to be Well Capitalized Under Prompt Corrective Action Provisions (Risk Based) | 6.50% | 6.50%

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