Parent Company Financial Information (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 4,204	$ 3,066	$ (249)	$ 1,972	$ 3,811	$ 3,462	$ 5,811	$ 2,692	$ 8,993	$ 15,776	$ 10,572
Adjustments to reconcile net income to cash used in operating activities:
Share-based compensation expense									943	177	208
Increase (decrease) in accrued expenses and other liabilities									9,683	2,033	(3,500)
Net cash provided by operating activities									15,504	12,169	11,997
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from issuance of common stock, net of issuance cost									4,560	30,958
Repurchase of common stock									(59)	(195)	(451)
Net cash provided (used in) financing activities									(62,930)	78,309	(78,878)
Net increase (decrease) in cash and cash equivalents									67,461	(883)	(3,227)
Cash and cash equivalents, beginning of year				59,352				60,235	59,352	60,235	63,462
Cash and cash equivalents, end of year	126,813				59,352				126,813	59,352	60,235
Corporation
CASH FLOWS FROM OPERATING ACTIVITIES
Net income									8,993	15,776	10,572
Adjustments to reconcile net income to cash used in operating activities:
Share-based compensation expense									943	177	208
Equity in net earnings of subsidiaries									(10,591)	(16,621)	(11,069)
Increase (decrease) in accrued expenses and other liabilities									(39)	154	(192)
Increase (decrease) in current and deferred taxes									1,153	93	352
Decrease (increase) in other assets									(504)	44	(128)
Net cash provided by operating activities									(45)	(377)	(257)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividend from Bank										800	3,450
Proceeds from issuance of common stock, net of issuance cost									4,560	30,958
Repurchase Pacific Premier Bancorp Warrants											(3,660)
Repurchase of common stock									(59)	(195)	(451)
Proceeds from exercise of options and warrants									90	237	274
Capital contribution to Bank									(8,700)	(25,000)
Net cash provided (used in) financing activities									(4,109)	6,800	(387)
Net increase (decrease) in cash and cash equivalents									(4,154)	6,423	(644)
Cash and cash equivalents, beginning of year				7,027				604	7,027	604	1,248
Cash and cash equivalents, end of year	$ 2,873				$ 7,027				$ 2,873	$ 7,027	$ 604