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Income Taxes - Significant Components of The Company's Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | --- | ---
Deferred tax assets |  |  |
Allowance for loan losses | $ 20,421 | $ 19,934 | $ 21,418
Loans | 25,585 | 23,240 | 24,299
Deferred compensation | 10,857 | 11,254 | 12,368
Securities | 2,573 | 2,439 | 2,346
Net unrealized losses on securities - OCI | 1,942 | 10,096 | 4,016
Impairment of assets | 2,383 | 2,512 | 3,877
Federal and State net operating loss carryforwards | 3,338 | 2,867 | 3,113
Intangibles | 0 | 1,247 | 1,012
Other | 7,319 | 3,463 | 7,958
Total deferred tax assets | 74,418 | 77,052 | 80,407
Deferred tax liabilities |  |  |
FDIC loss-share indemnification asset | 0 | 0 | 1,939
Investment in partnerships | 946 | 1,556 | 2,001
Intangibles | 428 | 0 | 0
Fixed assets | 1,429 | 2,517 | 2,598
Mortgage servicing rights | 3,360 | 3,360 | 3,589
Junior subordinated debt | 3,620 | 4,111 | 4,128
Other | 1,770 | 2,876 | 4,294
Total deferred tax liabilities | 11,553 | 14,420 | 18,549
Net deferred tax assets | $ 62,865 | $ 62,632 | $ 61,858

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