Regulatory Capital Requirements (Tables)

3 Months Ended

Mar. 31, 2017

Banking And Thrift [Abstract]

Schedule of Capital Amounts and Ratios

The Company’s and the Bank’s capital amounts and ratios as of March 31, 2017 and December 31, 2016 are presented in the following table (dollars in thousands).  

	Actual					Minimum capital requirement (1)					Minimum to be well-capitalized (2)
	Amount		Ratio			Amount		Ratio			Amount		Ratio
At March 31, 2017:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	152,445		12.1	%	$	100,502		8.0	%	N/A		N/A
CapStar Bank		129,571		10.3			100,483		8.0		$	125,604		10.0
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		138,375		11.0			75,377		6.0		N/A		N/A
CapStar Bank		115,501		9.2			75,362		6.0			100,483		8.0
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		129,685		10.3			56,533		4.5		N/A		N/A
CapStar Bank		99,311		7.9			56,522		4.5			81,643		6.5
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		138,375		10.4			53,396		4.0		N/A		N/A
CapStar Bank		115,501		8.7			53,394		4.0			66,742		5.0
At December 31, 2016:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	149,616		12.6	%	$	95,028		8.0	%	N/A		N/A
CapStar Bank		126,718		10.7			95,028		8.0		$	118,785		10.0
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		137,909		11.6			71,271		6.0		N/A		N/A
CapStar Bank		115,011		9.7			71,271		6.0			95,028		8.0
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		129,528		10.9			53,453		4.5		N/A		N/A
CapStar Bank		99,130		8.3			53,453		4.5			77,210		6.5
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		137,909		10.5			52,727		4.0		N/A		N/A
CapStar Bank		115,011		8.7			52,727		4.0			65,909		5.0

(1) For the calendar year 2017, the Company must maintain a capital conservation buffer of Tier 1 common equity capital in excess of minimum risk-based capital ratios by at least 1.25% to avoid limits on capital distributions and certain discretionary bonus payments to executive officers and similar employees.

(2) For the Company to be well-capitalized, the Bank must be well-capitalized and the Company must not be subject to any written agreement, order, capital directive, or prompt corrective action directive issued by the Federal Reserve to meet and maintain a specific capital level for any capital measure.