Business Combinations - Business Combination Pro Forma Information (Parenthetical) (Detail)	12 Months Ended
Dec. 31, 2015
Business Combinations [Abstract]
Business acquisition, pro forma adjustments estimated combined federal and state statutory tax rate	40.00%

Business acquisition, pro forma adjustments estimated combined federal and state statutory tax rate.

No definition available.

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Namespace Prefix:	fac_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration